tl;dr version: The largest known prime number, 2^(57,885,161)-1, was discovered on January 25th 2013. It has 17,425,170 digits. The new prime number is a memb

tl;dr version: The largest known prime number, 2^(57,885,161)-1, was discovered on January 25th 2013. It has 17,425,170 digits. The new prime number is a member of a special class of extremely rare prime numbers known as Mersenne primes... http://tldr.io/tldrs/51111f3dde23f15658000031/48th-known-mersenne-prime-discovered http://tldr.io/tldrs/51111f3dde23f15658000031/48th-known-mer...