[math-fun] Mersenne Indexes Revealed

Now it can be told. In order of discovery, M(p) with p = 43,112,609 or 37,156,667 is prime. UCLA discovered the first and win the $100,000 EFF prize for the first known prime of over 10m decimal digits. The second prime was discovered two weeks later, so they unfortunately miss out on the prize. www.mersenne.org Guy