Руководство по PHP
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# gmp_nextprime

(no version information, might be only in CVS)

gmp_nextprime -- Find next prime number

## Description

resource gmp_nextprime ( int a )

Return next prime number greater than a.

This function uses a probabilistic algorithm to identify primes and chances to get a composite number are extremely small.

Пример 1. gmp_nextprime() example

`<?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 printout of the above program is:

    11
    -997

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gmp_neg | Уровень выше | gmp_or