13579...75139 (9725-digits)

This number is a prime.

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The largest known probable prime (concatenation of odd numbers from 1 to 5139) in the Smarandache Concatenated Odd Sequence found by Weisstein in 1998. [Gupta]

Submitted: 2002-05-21 18:57:34; Last Modified: 2008-01-30 17:28:00.