Join Up!
(PHP 4 >= 4.0.4, PHP 5)
gmp_gcd — Calculate GCD
Calculate greatest common divisor of a and b . The result is always positive even if either of, or both, input operands are negative.
It can be either a GMP number resource, or a numeric string given that it is possible to convert the latter to a number.
A positive GMP number that divides into both a and b .
Example #1 gmp_gcd() example
<?php $gcd = gmp_gcd("12", "21"); echo gmp_strval($gcd) . "\n"; ?>
The above example will output:
3
gmp_fact
