19008...65571 (97-digits)

This number is a prime.

                                               1900871 2816648221 1312685157
3935413975 4718967899 6851549366 6638539088 0271038021 0449895719 1261465571

Single Curio View:   (Seek other curios for this number)
The largest prime factor for the RSA challenge number RSA-640. Discovered by F. Bahr, et al., on November 2, 2005. [Sladcik]

Submitted: 2005-12-26 02:20:10;   Last Modified: 2008-01-30 17:28:00.
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