This number is a prime.

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Machin's formula was used by S. C. Nicholson and J. Jeenel in 1954 to find π to 3089 decimal places on the IBM Naval Ordnance Research Calculator (NORC). [Honaker]

Submitted: 2021-03-14 07:25:20;   Last Modified: 2021-03-14 07:27:06.
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