239

This number is a prime.

Just showing those entries submitted by 'Wood': (Click here to show all)

+ 239 = 2*3*5*11 - 7*13, proof of primality. [Wood]

+ The number of composite-numbered days of the month in both leap years and non-leap years. [Homewood]

+ If A = 3, B = 5, C = 7, ... , Z = 137, using the regular prime alphabet, then 'PRIME' is a regular prime. [Homewood]

+ Roger Bannister ran the first sub 4 minute mile in 239 seconds. [Homewood]

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