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Wilson's theorem

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Antti H S Laaksonen 2017-02-09 00:18:42 +02:00
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@ -697,8 +697,8 @@ For example, the number 11 is prime, because
and the number 12 is not prime, because
\[11! \bmod 12 = 0 \neq 11.\]
Hence, Wilson's theorem tells us whether a number
is prime. However, in practice, the theorem cannot be
Hence, Wilson's theorem can be used to find out
whether a number is prime. However, in practice, the theorem cannot be
applied to large values of $n$, because it is difficult
to calculate the value of $(n-1)!$ when $n$ is large.