         Sentence .1: the Great Interriet Mersenne  Prime Search, what’ was. the prize for  finding a-prime with at least 10 million  digits?    Sentence 2: Some of the largest primes not  known to have any particular farm (that is,  no simple, formula such-as ‘that of  Mersenne primes) have been. found by  taking a piece of semi-random-binary data,  converting it to a number n, multiplying it  by 256k for some positive integet.k, and  searching ‘for possible -primes, within the  interval [256kn +. 1, 256k(n +1)    