11111...00001 (100-digits)
This number is a prime.
1111111111 1111111111 1111111111
1111111111 1111111111 1111111111 1111111111 1111111111 1111111111 1101100001
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The largest prime less than a googol which contains the digits 0 and 1 only. [Gupta]
Submitted: 2004-01-03 16:17:13; Last Modified: 2008-01-30 17:28:00.
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