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PHP : Function Reference : GMP Functions : gmp_nextprime

gmp_nextprime

Find next prime number (PHP 5 >= 5.2.0)
resource gmp_nextprime ( int a )

Example 802. gmp_nextprime() example

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<?php

$prime1 = gmp_nextprime(10); // next prime number greater than 10
$prime2 = gmp_nextprime(-1000); // next prime number greater than -1000

echo gmp_strval($prime1) . "\n";

echo gmp_strval($prime2) . "\n";
?>

The above example will output:

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11

-997

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