Q:

Write a function to check whether a number is prime or not

hamza
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2022-05-18
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Write a function to check whether a number is prime or not.

Note: A prime number (or a prime) is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Php programming,
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hamza
2022-05-18
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<?php
function IsPrime($n)
{
 for($x=2; $x<$n; $x++)
   {
      if($n %$x ==0)
	      {
		   return 0;
		  }
    }
  return 1;
   }
$a = IsPrime(3);
if ($a==0)
echo 'This is not a Prime Number.....'."\n";
else
echo 'This is a Prime Number..'."\n";
?>

Sample Output:

This is a Prime Number..

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