Prime Curios!: 643

643
(another Prime Pages' Curiosity)

Curios:

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The largest prime factor of 123456. Note that 643(64*3) = 123456. [De Montagu]

643 millimetres is the record monthly rainfall in Sydney (from June 1950).

643 = (3⁸ + 8³)/(3 + 8). [Trotter]

There is a 6-4-3 double play in baseball. [Patterson]

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