Prime No Archives | AHMAD ASJAD

November 30, 2015

Find prime numbers between the range

<?php
 
$start=0;
$end=100;
$prime_numbers=array();
for($i=$start;$i<=$end;$i++){
	if(is_prime($i)==true){
		$prime_numbers[]=$i;
	}
}
 
var_dump($prime_numbers);
function is_prime($num){
	$no=$num;
	$prime=true;
	for($i=2;$i<=($no/2);$i++)
	{
		if($no%$i==0){
			$prime=false;
			break;
		}
	}
	return $prime;
}
 
?>

Posted in Algorithm, Array, Function, Method, PHP, Programming by ahmadasjad Leave a comment

November 30, 2015

prime no or not

First of all, I want to tell you that what is the prime no.

Prime no is the no which can’t be divided by other than 1 and itself.

Prime No? Yes : No;

Code Block

<?php
$no=8;
$prime=true;
for($i=2;$i<($no/2);$i++)
{
    if($no%$i==0){
        $prime=false;
        break;
    }
}
if($prime==true){
    echo "<br/>Number is Prime<br/>";
}
else{
    echo "<br/>Number is not prime<br/>";
}
?>

Posted in Algorithm, Function, PHP, Programming by ahmadasjad Leave a comment

AHMAD ASJAD – احمد اسجد

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Tag Archives: Prime No

Find prime numbers between the range

prime no or not

Prime No? Yes : No;