PHP, MySQL, Drupal, .htaccess, Robots.txt, Phponwebsites: Find Armstrong Numbers between 1 to 1000 in PHP

19 Aug 2015

Find Armstrong Numbers between 1 to 1000 in PHP

            This blog describes how to find Armstrong Numbers between 1 to 1000 using PHP?. Before we are going to program part, we should know what is Armstrong Number?. So only we can write program for find Armstrong Number in any languages like C, C++, PHP.

what is Armstrong Number?


           Armstrong Number is sum of 3 power of each digits equals to given number.
For example: 
           153 is Armstrong Number.
           1^3 + 5^3 + 3 ^3
           1 + 125 + 27
           153

PHP Program to find Armstrong Numbers:


          Consider below example which is find Armstrong Numbers between 1 to 1000.

<?php
for($i = 1; $i <= 1000; $i++) {
  $sum = 0;
  $qu = $i;
  while($qu != 0) {
$remainder = $qu % 10;
$thrice = $remainder * $remainder * $remainder;
$sum += $thrice;
$qu = $qu / 10;
  }
  if ($sum == $i) {
    echo "<p>$i is armstrong number</p>";
  }
}
?>


PHP program for find Armstrong Numbers


              Now you got Armstrong Numbers between 1 to 1000.

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