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PHP : Function Reference : GMP Functions : gmp_prob_prime

gmp_prob_prime

Check if number is "probably prime" (PHP 4 >= 4.0.4, PHP 5)
int gmp_prob_prime ( resource a [, int reps] )

Example 808. gmp_prob_prime() example

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<?php
// definitely not a prime
echo gmp_prob_prime("6") . "\n";

// probably a prime
echo gmp_prob_prime("1111111111111111111") . "\n";

// definitely a prime
echo gmp_prob_prime("11") . "\n";
?>

The above example will output:

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