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The nth Prime Page will now find any of the first 2.623˙10^{15} primes or
π(x) for x up to 10^{17}. 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 7bit 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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