#math trivia for #September11: #254 is the product of a prime and a Mersenne prime. What are the primes?
— Burt Kaliski Jr. (@modulomathy) September 11, 2013
A Mersenne prime is a prime p that has the form p = 2q-1 where q is also prime.
The prime factors of 254 are 2 and 127. The second factor is the Mersenne prime. (For the reader: What is the value of q for this prime?)
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