139
This number is a prime.
Single Curio View: (Seek other curios for this number)
2^1 + 2^3 + 2^9 +/- 1 and 2^1 + 2^3 + 2^9 + 139^2 are all prime. [Homewood]
Submitted: 2018-05-05 18:38:58; Last Modified: 2018-05-05 19:29:23.
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