197
This number is a prime.
Single Curio View: (Seek other curios for this number)
|8*k^2 + 8*k − 197| generates only primes for k = 0 to 30. [Yosei]
Submitted: 2019-10-25 08:22:37; Last Modified: 2022-02-26 22:44:05.
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