Prime Curios!: 617

617
(another Prime Pages' Curiosity)

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The largest of the RSA numbers has a length of 2048 bits (617 decimal digits). There was once a $200,000 prize offered for its factorization, but is now withdrawn. Anyway, RSA-2048 is unlikely to be factored anytime soon.

Submitted: 2005-08-09 14:52:20; Last Modified: 2009-03-30 11:36:27.