Largest known prime number discovered by GIMPS project

The Great Internet Mersenne Prime Search, more commonly referred to as GIMPS (not to be mistaken with the image editing software), has announced the discovery of the largest known prime number. That number is a huge 2^77,232,917-1, which contains 23,249,425 digits. To more easily refer to it, the number is also being called M77232917. Dozens of hours have gone into …