Pointless math challenge #1435 : In the

17th century, a guy named

Marin Mersenne told people about a

number that he

claimed was

factorable, and he

challenged his

students and peers to

factor it. The

number is :

**1326861043989720531776085755060905614293539359890333525802891469459697**.

It took a Cray to crack the problem. The solution is :

**178230287214063289511 times 61676882198695257501367 times 12070396178249893039969681**.