Mersenne Primes
A Mersenne prime is a Mersenne number that is prime. It is known that if 2p − 1 is prime then p is prime so it makes no difference which Mersenne number definition is used. As of October 2009, only 47 Mersenne primes are known. The largest known prime number (243,112,609 − 1) is a Mersenne prime. Since 1997, all newly-found Mersenne primes were discovered by the "Great Internet Mersenne Prime Search" (GIMPS), a distributed computing project on the Internet.
http://en.wikipedia.org/wiki/Mersenne_prime

Why is this important? Because with Mersenne Prime's, I wouldn't have anything to write on my first Posterous second page.
The Longest Mersenne Prime in it's full text form (18MB text file)
three hundred sixteen quattuormilliamilliatrecensexviginmilliaunsexagintillion, four hundred seventy quattuormilliamilliatrecensexviginmilliasexagintillion, two hundred sixty nine quattuormilliamilliatrecensexviginmillianovemquinquagintillion, three hundred thirty quattuormilliamilliatrecensexviginmilliaoctoquinquagintillion, two hundred fifty five quattuormilliamilliatrecensexviginmilliaseptenquinquagintillion, nine hundred twenty three quattuormilliamilliatrecensexviginmilliasexquinquagintillion, one hundred forty three quattuormilliamilliatrecensexviginmilliaquinquinquagintillion, four hundred fifty three quattuormilliamilliatrecensexviginmilliaquattuorquinquagintillion, seven hundred twenty three quattuormilliamilliatrecensexviginmilliatrequinquagintillion, nine hundred forty nine quattuormilliamilliatrecensexviginmilliadoquinquagintillion, three hundred thirty seven quattuormilliamilliatrecensexviginmilliaunquinquagintillion, five hundred sixteen quattuormilliamilliatrecensexviginmilliaquinquagintillion, fifty four quattuormilliamilliatrecensexviginmillianovemquadragintillion, one hundred six quattuormilliamilliatrecensexviginmilliaoctoquadragintillion, one hundred eighty eight quattuormilliamilliatrecensexviginmilliaseptenquadragintillion, four hundred seventy five quattuormilliamilliatrecensexviginmilliasexquadragintillion, two hundred sixty four quattuormilliamilliatrecensexviginmilliaquinquadragintillion, six hundred forty four quattuormilliamilliatrecensexviginmilliaquattuorquadragintillion...
"I come in peace."
"You go in pieces".
Quick, which awesome movie. And if you can't appreciate the astounding and wonderful career of Dolph Lungren, you shouldn't be involved in the search for the Mersenne Prime.