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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ Suppose you were to take a variant of efdtt.c, a program that will allow you to play a DVD on a computer, and then convert each character in the code to its 7-bit ascii equivalent (the code contains standard characters, so the eight or leading bit is zero). Finally, view this string of bits as a single number. What do you get? This illegal prime!

This number was found to be a probable prime by Charles M. Hannum (the original author of efdtt.c) and proven prime by Phil Carmody. [Caldwell]

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