11112222222222222222211
This number is a prime.
111 1222222222 2222222211
Single Curio View: (Seek other curios for this number)
R(23) + R(19) - R(2) is prime. Note that R(2), R(19), and
R(23), are the first three repunit primes. [Wesolowski]
Submitted: 2008-01-08 20:33:19; Last Modified: 2008-01-30 17:28:00.
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