Source: wikibot/mersenne-prime

= Mersenne prime
{wiki=Mersenne_prime}

A Mersenne prime is a specific type of prime number that can be expressed in the form \\(M_n = 2^n - 1\\), where \\(n\\) is a positive integer. In other words, if \\(M_n\\) is prime, then \\(n\\) itself must also be prime.