13579...35557 (33-digits)

This number is a prime.

135 7911131517 1931333537 3951535557

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The largest odd-digit prime less than a googol formed by concatenating in ascending order the first n odd-digit numbers (n=19). [Loungrides]

Submitted: 2010-04-30 17:02:52; Last Modified: 2010-04-30 18:59:35.