{"id":4244,"date":"2021-09-27T23:05:00","date_gmt":"2021-09-27T17:35:00","guid":{"rendered":"https:\/\/www.codingbroz.com\/?p=4244"},"modified":"2021-09-27T10:32:52","modified_gmt":"2021-09-27T05:02:52","slug":"armstrong-number-in-c-using-function","status":"publish","type":"post","link":"https:\/\/www.codingbroz.com\/armstrong-number-in-c-using-function\/","title":{"rendered":"Armstrong Number in C Using Function"},"content":{"rendered":"\n<p>In this post, we will learn <strong>how to check Armstrong number in C using function<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/09\/armstrong-number-in-c-using-function-codingbroz.png\" alt=\"Armstrong Number in C Using Function\" class=\"wp-image-4247\" srcset=\"https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/09\/armstrong-number-in-c-using-function-codingbroz.png 1200w, https:\/\/www.codingbroz.com\/wp-content\/uploads\/2021\/09\/armstrong-number-in-c-using-function-codingbroz-768x432.png 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p>As we know, <strong>Armstrong Number<\/strong> is a number that is equal to the sum of cubes of its digits. For example: 371 is an Armstrong number because (3)<sup>3<\/sup> + (7)<sup>3<\/sup> + (1)<sup>3<\/sup> = 27 + 343 + 1 = 371. So, 371 is an Armstrong number of order 3.<\/p>\n\n\n\n<p>Similarly, 8208 is an armstrong number of order 4.<\/p>\n\n\n\n<p>We will declare a custom function which will check whether the number is an armstrong number or not.<\/p>\n\n\n\n<p>So, without further ado, let\u2019s begin this tutorial.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 ez-toc-wrap-left counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<label for=\"ez-toc-cssicon-toggle-item-662c088a064a0\" class=\"ez-toc-cssicon-toggle-label\"><label class=\"ez-toc-title\">Table of Contents<\/label>\n<span class=\"ez-toc-cssicon\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #0090ff;color:#0090ff\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #0090ff;color:#0090ff\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-662c088a064a0\" checked \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.codingbroz.com\/armstrong-number-in-c-using-function\/#Armstrong_Number_in_C_Using_Function\" title=\"Armstrong Number in C Using Function\">Armstrong Number in C Using Function<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.codingbroz.com\/armstrong-number-in-c-using-function\/#How_Does_This_Program_Work\" title=\"How Does This Program Work ?\">How Does This Program Work ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.codingbroz.com\/armstrong-number-in-c-using-function\/#Armstrong_Number_in_C_of_Order_N_Using_Function\" title=\"Armstrong Number in C of Order N Using Function\">Armstrong Number in C of Order N Using Function<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.codingbroz.com\/armstrong-number-in-c-using-function\/#Conclusion\" title=\"Conclusion\">Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Armstrong_Number_in_C_Using_Function\"><\/span><strong>Armstrong Number in C Using Function<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Armstrong Number in C Using Function\n#include &lt;stdio.h>\nint armstrong(int num){\n    int lastdigit = 0;\n    int sum = 0;\n    int power = 0;\n    \n    int n = num;\n    while (n != 0){\n        lastdigit = n % 10;\n        power = lastdigit * lastdigit * lastdigit;\n        sum = sum + power;\n        \n        n = n \/ 10;\n    }\n    if (sum == num)\n        return 0;\n    else\n        return 1;\n}\n\nint main(){\n    int num;\n    \n    \/\/ Asking for Input\n    printf(\"Enter a number: \");\n    scanf(\"%d\", &amp;num);\n    \n    if (armstrong(num) == 0){\n        printf(\"%d is an Armstrong Number.\", num);\n    }\n    else{\n        printf(\"%d is not an Armstrong Number.\", num);\n    }\n    return 0;\n}\n<\/pre>\n\n\n\n<p><strong>Output 1<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Enter a number: 371\r\n371 is an Armstrong Number.\r<\/code><\/pre>\n\n\n\n<p><strong>Output 2<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Enter a number: 144\r\n144 is not an Armstrong Number.\r<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Does_This_Program_Work\"><\/span><strong>How Does This Program Work ?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code><strong>int armstrong(int num){\r\n    int lastdigit = 0;\r\n    int sum = 0;\r\n    int power = 0;\r\n    \r\n    int n = num;\r\n    while (n != 0){\r\n        lastdigit = n % 10;\r\n        power = lastdigit * lastdigit * lastdigit;\r\n        sum = sum + power;\r\n        \r\n        n = n \/ 10;\r\n    }\r\n    if (sum == num)\r\n        return 0;\r\n    else\r\n        return 1;\r\n}<\/strong>\r<\/code><\/pre>\n\n\n\n<p>In this program, we have declared a custom function named <strong>armstrong<\/strong> which will check whether the entered number is an <strong>Armstrong <\/strong>number or not.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><strong>    if (armstrong(num) == 0){\r\n        printf(\"%d is an Armstrong Number.\", num);\r\n    }\r\n    else{\r\n        printf(\"%d is not an Armstrong Number.\", num);\r\n    }<\/strong>\r<\/code><\/pre>\n\n\n\n<p>Then, we call this custom function in our main function which will check for the entered number. If the custom function returns <strong>0<\/strong>, then the entered number is an <strong>Armstrong<\/strong> number.\u00a0<\/p>\n\n\n\n<p>Otherwise, the entered number is not an Armstrong number.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Armstrong_Number_in_C_of_Order_N_Using_Function\"><\/span><strong>Armstrong Number in C of Order N Using Function<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"c\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include&lt;stdio.h>\n#include&lt;math.h>\n\nint armstrong(int num, int order)\n{\n\n  int lastDigit = 0;\n  int sum = 0;\n  int power = 0;\n\n  int n = num;\n\n  while(n!=0) {\n\n     \/\/ find last digit\n     lastDigit = n % 10;\n\n     \/\/ find power of digit\n     power = pow(lastDigit, order);\n\n     \/\/ add power value into sum\n     sum += power;\n\n     \/\/ remove last digit\n     n \/= 10;\n  }\n\n  if(sum == num)\n    return 0;\n  else\n    return 1;\n}\n\nint main()\n{\n  int num, order;\n\n  printf(\"Enter number: \");\n  scanf(\"%d\",&amp;num);\n\n  printf(\"Enter Order: \");\n  scanf(\"%d\",&amp;order);\n\n  if(armstrong(num, order) == 0)\n  printf(\"%d is an Armstrong number of order %d.\\n\", num, order);\n  else\n  printf(\"%d is not an Armstrong number of order %d.\", num,order);\n  return 0;\n}\n<\/pre>\n\n\n\n<p><strong>Output 1<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Enter number: 371\r\nEnter Order: 3\r\n371 is an Armstrong number of order 3.<\/code><\/pre>\n\n\n\n<p><strong>Output 2<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Enter number: 7001\r\nEnter Order: 4\r\n7001 is not an Armstrong number of order 4.\r<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>I hope after going through this post, you understand <strong>how to check armstrong number in C Using Function<\/strong>.<\/p>\n\n\n\n<p>If you have any doubt regarding the program, feel free to contact us in the comment section. We will be delighted to solve your query.<\/p>\n\n\n\n<p><strong>Also Read:<\/strong><\/p>\n\n\n\n<ul><li><strong><a href=\"https:\/\/www.codingbroz.com\/c-program-to-find-square-of-a-number\/\">C Program To Find Square of a Number<\/a><\/strong><\/li><li><strong><a href=\"https:\/\/www.codingbroz.com\/c-program-to-calculate-simple-interest\/\">C Program To Calculate Simple Interest<\/a><\/strong><\/li><li><strong><a href=\"https:\/\/www.codingbroz.com\/c-program-to-print-1-to-100-without-using-loop\/\">C Program To Print 1 To 100 Using Loop<\/a><\/strong><\/li><li><strong><a href=\"https:\/\/www.codingbroz.com\/c-program-to-calculate-profit-or-loss\/\">C Program To Calculate Profit or Loss<\/a><\/strong><\/li><li><strong><a href=\"https:\/\/www.codingbroz.com\/c-program-to-find-cube-of-a-number\/\">C Program To Find Cube of a Number<\/a><\/strong><\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>In this post, we will learn how to check Armstrong number in C using 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