Double Mersenne Prime is a Mersenne Prime of the form 2p - 1 for which p is also a Mersenne Prime. There are currently only 4 known double Mersenne Primes: 7127, 2147483647, and 170141183460469231731687303715884105727. It is conjectured that these are the only double Mersenne Primes in existence.

See alsoEdit

Mersenne Primes

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