PHP code for generating prime number.IF a number is divisible by 1 and the number itself it is a prime number.in the below code $number_of_time_divide is greater than <3 its a prime number.Please see the code
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$count=0; $number=2; $number_of_prime_numbers=20; while($count<$number_of_prime_numbers) { $number_of_time_divide=0; for($i=1;$i<=$number;$i++) { if (($number%$i)==0) { //check the number is divided by 1 and that number itself. if it is divisible by more than one number count will be above three. $number_of_time_divide++; } } if($number_of_time_divide<3) { echo "number".$number; echo "<br>";$count++; } $number=$number+1; } |