تعريف mersenne prime في الإنجليزية الإنجليزية القاموس.
A Mersenne number which is prime In order for 2^n - 1 to be prime, n itself must be prime Only 38 Mersenne primes are known; they include the very largest known primes Much more information about Mersenne primes is available here; an Internet-based project to search for more of them is here