    Sentence I: In what year was the  Great Internet’ Mersenne Prime  Search project conducted?    Sentence 2: Some of the largest  primes not known to have any  particular form (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 mumber n,  multiplying it by 256k for some  positive integer k, and searching for