10000...99999 (1399-digits)

This number is a prime.

Single Curio View: (Seek other curios for this number)

The first titanic prime of the form 10^(2k)+10^k-1 (for k = 699), formed from 1 followed by 699 zeros and 699 nines. [Silva]

Submitted: 2009-06-27 23:52:30; Last Modified: 2009-06-28 00:14:17.