Sunday, January 10, 2010

Record 232-Digit Number From Cryptography Challenge Factored

From Scientific American:

A team of researchers has successfully factored a 232-digit number into its two composite prime-number factors, but too late to claim a $50,000 prize once attached to the achievement. The number, RSA-768, was part of a cryptography challenge that technically ended in 2007 that had been sponsored by RSA Laboratories, a prominent computer-security firm. RSA-768, so named because its binary representation is 768 bits long, is the largest number from the now-defunct challenge to be cracked.

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