Exercise 6.3<\/title>\n <link rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/codemirror\/5.65.16\/codemirror.min.css\" \/>\n <link rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/codemirror\/5.65.16\/theme\/eclipse.min.css\" \/>\n <link rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/font-awesome\/6.4.0\/css\/all.min.css\">\n\n <style>\n \/* Wrapper to protect styles *\/\n .py-receipt-wrapper {\n \/* Local CSS Variables *\/\n --py-bg-app: #f9fafb;\n --py-bg-panel: #ffffff;\n --py-border: #e5e7eb;\n --py-text-primary: #1f2937;\n --py-text-secondary: #6b7280;\n --py-primary-blue: #2563eb;\n --py-primary-hover: #1d4ed8;\n --py-header-height: 50px;\n --py-footer-height: 60px;\n\n font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, sans-serif;\n background-color: var(--py-bg-app);\n color: var(--py-text-primary);\n width: 100%;\n border: 1px solid var(--py-border);\n box-sizing: border-box;\n }\n\n 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rotate(360deg); } }\n\n .py-receipt-hidden { display: none !important; }\n .py-receipt-btn-mobile { display: none !important; }\n\n @media (max-width: 768px) {\n .py-receipt-top-nav { display: none; }\n .py-receipt-ide-container { flex-direction: column; overflow-y: auto; height: auto; }\n .py-receipt-left-pane, .py-receipt-right-pane { width: 100%; height: auto; }\n .py-receipt-left-pane { border-right: none; border-bottom: 8px solid #f3f4f6; min-height: auto; max-height: 400px; }\n .py-receipt-right-pane { display: flex; flex-direction: column; }\n .py-receipt-console-section, .py-receipt-console-body, .py-receipt-footer-actions { display: contents; }\n .py-receipt-console-header { display: none; }\n .py-receipt-editor-top-bar { order: 1; }\n .py-receipt-code-area { order: 2; height: 500px; }\n .py-receipt-code-area .CodeMirror { position: relative; height: 500px; }\n .py-receipt-input-wrapper { order: 3; width: 100%; height: auto; min-height: 280px; border-right: none; border-top: 8px solid #f3f4f6; border-bottom: 1px solid var(--py-border); }\n .py-receipt-execution-group { order: 4; width: 100%; display: flex; padding: 15px; gap: 10px; border-bottom: 1px solid var(--py-border); background: #fff; }\n .py-receipt-execution-group .py-receipt-btn { flex: 1; }\n .py-receipt-output-wrapper { order: 5; width: 100%; height: auto; min-height: 300px; max-height: 500px; border-right: none; background: #fff; }\n .py-receipt-btn-mobile { display: inline-flex !important; order: 6; width: 48%; margin: 15px 1%; box-sizing: border-box; text-align: center; }\n a.py-receipt-hidden { display: none !important; }\n }\n <\/style>\n<\/head>\n\n<body>\n\n<div class=\"py-receipt-wrapper\">\n <div class=\"py-receipt-top-nav\">\n <a id=\"py-receipt-btn-prev-top\" class=\"py-receipt-btn py-receipt-btn-secondary py-receipt-hidden\" href=\"\">← Previous<\/a>\n <span class=\"py-receipt-nav-title\">Module 6: Functions<\/span>\n <a id=\"py-receipt-btn-next-top\" class=\"py-receipt-btn py-receipt-btn-primary py-receipt-hidden\" href=\"#\">Next →<\/a>\n <\/div>\n\n <div class=\"py-receipt-ide-container\" id=\"py-receipt-ideContainer\">\n \n <div class=\"py-receipt-left-pane\">\n <div class=\"py-receipt-tabs-header\">\n <div class=\"py-receipt-tab-item active\" onclick=\"pyReceiptSwitchTab('statement')\">Statement<\/div>\n <div class=\"py-receipt-tab-item\" onclick=\"pyReceiptSwitchTab('solution')\">Solution<\/div>\n <\/div>\n\n <div id=\"py-receipt-tab-statement\" class=\"py-receipt-pane-content active\">\n <h1 id=\"python-exercise-6-3-recursive-factorial\">Python Exercise 6.3: Recursive Factorial<\/h1>\n <p>Calculate factorial using recursion (function calling itself).<\/p>\n <p>Your program should:<\/p>\n <ul>\n <li>Define a recursive function <code>factorial(n)<\/code>.<\/li>\n <li>Base case: if n == 0 or n == 1, return 1.<\/li>\n <li>Recursive case: return n * factorial(n-1).<\/li>\n <li>Test with user input.<\/li>\n <\/ul>\n\n <h3 id=\"sample-interaction\">Sample Interaction:<\/h3>\n <div class=\"py-receipt-sample-box\">\n <div class=\"py-receipt-sample-header\">\n <div class=\"py-receipt-sample-col-title\">Input<\/div>\n <div class=\"py-receipt-sample-col-title\">Output<\/div>\n <\/div>\n <div class=\"py-receipt-sample-body\">\n <div class=\"py-receipt-sample-col-content\">5<\/div>\n <div class=\"py-receipt-sample-col-content\">120<\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <div id=\"py-receipt-tab-solution\" class=\"py-receipt-pane-content\">\n <h1 id=\"solution\">Solution<\/h1>\n <p>Here is the recursive factorial function.<\/p>\n <div class=\"py-receipt-solution-block\">def factorial(n):\n if n == 0 or n == 1:\n return 1\n else:\n return n * factorial(n - 1)\n\n# Test the function\nn = int(input(\"Enter n: \"))\nprint(factorial(n))<\/div>\n \n <p style=\"margin-top:20px\"><strong>Key Concepts:<\/strong><\/p>\n <ul>\n <li>Recursion calls the function itself.<\/li>\n <li>Base case prevents infinite recursion.<\/li>\n <li>Recursive case breaks down the problem.<\/li>\n <\/ul>\n <\/div>\n <\/div>\n\n <div class=\"py-receipt-right-pane\">\n <div class=\"py-receipt-editor-top-bar\">\n <span class=\"py-receipt-lang-label\">Python 3<\/span>\n <div class=\"py-receipt-editor-settings\">\n <i class=\"fas fa-expand\" id=\"py-receipt-fullscreenBtn\" title=\"Toggle Fullscreen\"><\/i>\n <\/div>\n <\/div>\n\n <div class=\"py-receipt-code-area\">\n <div id=\"py-receipt-code-editor-div\"><\/div>\n <\/div>\n\n <div class=\"py-receipt-console-section\">\n <div class=\"py-receipt-console-header\">Test Console<\/div>\n <div class=\"py-receipt-console-body\">\n <div class=\"py-receipt-input-wrapper\">\n <label class=\"py-receipt-console-label\">Custom Input (Stdin)<\/label>\n <textarea id=\"py-receipt-custom-input\" class=\"py-receipt-custom-input-area\" placeholder=\"Enter input here...\">5<\/textarea>\n <\/div>\n <div class=\"py-receipt-output-wrapper\">\n <label class=\"py-receipt-console-label\">Output<\/label>\n <div id=\"py-receipt-output-console\" class=\"py-receipt-output-display\">Run code to see output...<\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <div class=\"py-receipt-footer-actions\">\n <a id=\"py-receipt-btn-prev-mobile\" class=\"py-receipt-btn py-receipt-btn-secondary py-receipt-hidden py-receipt-btn-mobile\" href=\"\">← Previous<\/a>\n\n <div class=\"py-receipt-execution-group\">\n <button class=\"py-receipt-btn py-receipt-btn-secondary\" onclick=\"pyReceiptResetCode()\">Reset<\/button>\n <button class=\"py-receipt-btn py-receipt-btn-primary\" onclick=\"pyReceiptRunCode()\">\n <span id=\"py-receipt-btn-text\">Run Code<\/span>\n <span class=\"py-receipt-spinner\" id=\"py-receipt-btn-spinner\"><\/span>\n <\/button>\n <\/div>\n\n <a id=\"py-receipt-btn-next-mobile\" class=\"py-receipt-btn py-receipt-btn-primary py-receipt-hidden py-receipt-btn-mobile\" href=\"#\">Next →<\/a>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n<script 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Your program should: Define a recursive function factorial(n). Base case: if n == 0 or n == 1, return 1. Recursive case: return n * factorial(n-1). Test with user input. Sample Interaction: […]<\/p>\n","protected":false},"author":41,"featured_media":0,"parent":114145,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25860],"tags":[36796,36895],"class_list":["post-117577","page","type-page","status-publish","hentry","category-software","tag-python","tag-python-exercise"],"acf":[],"yoast_head":"\n<title>Python Program Recursive Factorial - Great Learning Blog: Free Resources what Matters to shape your Career!<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mygreatlearning.com\/blog\/python-exercise\/python-program-recursive-factorial\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Program Recursive Factorial\" \/>\n<meta property=\"og:description\" content=\"Exercise 6.3 ← Previous Module 6: Functions Next → Statement Solution Python Exercise 6.3: Recursive Factorial Calculate factorial using recursion (function calling itself). 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inline-flex !important; order: 6; width: 48%; margin: 15px 1%; box-sizing: border-box; text-align: center; }\n a.py-receipt-hidden { display: none !important; }\n }\n <\/style>\n<\/head>\n\n<body>\n\n<div class=\"py-receipt-wrapper\">\n <div class=\"py-receipt-top-nav\">\n <a id=\"py-receipt-btn-prev-top\" class=\"py-receipt-btn py-receipt-btn-secondary py-receipt-hidden\" href=\"\">← Previous<\/a>\n <span class=\"py-receipt-nav-title\">Module 6: Functions<\/span>\n <a id=\"py-receipt-btn-next-top\" class=\"py-receipt-btn py-receipt-btn-primary py-receipt-hidden\" href=\"#\">Next →<\/a>\n <\/div>\n\n <div class=\"py-receipt-ide-container\" id=\"py-receipt-ideContainer\">\n \n <div class=\"py-receipt-left-pane\">\n <div class=\"py-receipt-tabs-header\">\n <div class=\"py-receipt-tab-item active\" onclick=\"pyReceiptSwitchTab('statement')\">Statement<\/div>\n <div class=\"py-receipt-tab-item\" onclick=\"pyReceiptSwitchTab('solution')\">Solution<\/div>\n <\/div>\n\n <div id=\"py-receipt-tab-statement\" class=\"py-receipt-pane-content active\">\n <h1 id=\"python-exercise-6-3-recursive-factorial\">Python Exercise 6.3: Recursive Factorial<\/h1>\n <p>Calculate factorial using recursion (function calling itself).<\/p>\n <p>Your program should:<\/p>\n <ul>\n <li>Define a recursive function <code>factorial(n)<\/code>.<\/li>\n <li>Base case: if n == 0 or n == 1, return 1.<\/li>\n <li>Recursive case: return n * factorial(n-1).<\/li>\n <li>Test with user input.<\/li>\n <\/ul>\n\n <h3 id=\"sample-interaction\">Sample Interaction:<\/h3>\n <div class=\"py-receipt-sample-box\">\n <div class=\"py-receipt-sample-header\">\n <div class=\"py-receipt-sample-col-title\">Input<\/div>\n <div class=\"py-receipt-sample-col-title\">Output<\/div>\n <\/div>\n <div class=\"py-receipt-sample-body\">\n <div class=\"py-receipt-sample-col-content\">5<\/div>\n <div class=\"py-receipt-sample-col-content\">120<\/div>\n <\/div>\n <\/div>\n <\/div>\n\n <div id=\"py-receipt-tab-solution\" class=\"py-receipt-pane-content\">\n <h1 id=\"solution\">Solution<\/h1>\n <p>Here is the recursive factorial function.<\/p>\n <div class=\"py-receipt-solution-block\">def factorial(n):\n if n == 0 or n == 1:\n return 1\n else:\n return n * factorial(n - 1)\n\n# Test the function\nn = int(input(\"Enter n: \"))\nprint(factorial(n))<\/div>\n \n <p style=\"margin-top:20px\"><strong>Key Concepts:<\/strong><\/p>\n <ul>\n <li>Recursion calls the function itself.<\/li>\n <li>Base case prevents infinite recursion.<\/li>\n <li>Recursive case breaks down the problem.<\/li>\n <\/ul>\n <\/div>\n <\/div>\n\n <div class=\"py-receipt-right-pane\">\n <div class=\"py-receipt-editor-top-bar\">\n <span class=\"py-receipt-lang-label\">Python 3<\/span>\n <div class=\"py-receipt-editor-settings\">\n <i class=\"fas fa-expand\" id=\"py-receipt-fullscreenBtn\" title=\"Toggle Fullscreen\"><\/i>\n <\/div>\n <\/div>\n\n <div class=\"py-receipt-code-area\">\n <div id=\"py-receipt-code-editor-div\"><\/div>\n 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Your program should: Define a recursive function factorial(n). Base case: if n == 0 or n == 1, return 1. Recursive case: return n * factorial(n-1). Test with user input. Sample Interaction: […]<\/p>\n","protected":false},"author":41,"featured_media":0,"parent":114145,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25860],"tags":[36796,36895],"class_list":["post-117577","page","type-page","status-publish","hentry","category-software","tag-python","tag-python-exercise"],"acf":[],"yoast_head":"\n<title>Python Program Recursive Factorial - Great Learning Blog: Free Resources what Matters to shape your Career!<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mygreatlearning.com\/blog\/python-exercise\/python-program-recursive-factorial\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python Program Recursive Factorial\" \/>\n<meta property=\"og:description\" content=\"Exercise 6.3 ← Previous Module 6: Functions Next → Statement Solution Python Exercise 6.3: Recursive Factorial Calculate factorial using recursion (function calling itself). 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