47

This number is a prime.

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The "Coffee Coincidence" (first observed by G. L. Honaker, Jr.) was formally announced on Slide 47 of Michael Keith's presentation titled "Fun with π: A Potpourri of Pilish Algorithms" held at Princeton University on March 20, 2025.

Submitted: 2025-04-01 21:35:36; Last Modified: 2025-04-03 23:47:19.

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