## Large non-Mersenne prime

### Problem 97

Published on Friday, 10th June 2005, 06:00 pm; Solved by 24662

The first known prime found to exceed one million digits was discovered in 1999, and is a Mersenne prime of the form 269725931; it contains exactly 2,098,960 digits. Subsequently other Mersenne primes, of the form 2p1, have been found which contain more digits.

However, in 2004 there was found a massive non-Mersenne prime which contains 2,357,207 digits: 2843327830457+1.

Find the last ten digits of this prime number.