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Previous: <a href="Generation.html#Generation" accesskey="p" rel="prev">Generation</a>, Up: <a href="Prime-numbers.html#Prime-numbers" accesskey="u" rel="up">Prime numbers</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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<h3 class="section">12.2 Checking</h3>
<dl>
<dt><a name="index-gcry_005fprime_005fcheck"></a>Function: <em>gcry_error_t</em> <strong>gcry_prime_check</strong> <em>(gcry_mpi_t <var>p</var>, unsigned int <var>flags</var>)</em></dt>
<dd>
<p>Check wether the number <var>p</var> is prime. Returns zero in case <var>p</var>
is indeed a prime, returns <code>GPG_ERR_NO_PRIME</code> in case <var>p</var> is
not a prime and a different error code in case something went horribly
wrong.
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