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+1 vote
asked in PHP by (26 points)
I was asked a question in my practical to check if a number is prime or not.

Can anyone help me? Thanks in advance

1 Answer

+1 vote
answered by (1k points)

This code will help you check if a number is prime or not:


function IsPrime($n) {
    for($x=2; $x<$n; $x++) {
      if($n % $x ==0) { return false;}

return true;
$a = IsPrime(13);

echo $a ? 'This is a Prime Number.' :  'This is not a Prime Number.';


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