23

This number is a prime.

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

Kristen Eller ©2002
+ 23 = 3 times the third prime + twice the second prime + once the first prime. [Murthy]

+ 2! + 3! = 23. [Murthy]

+ 23 = - (22 - 33). [Murthy]

+ The smallest prime of form pp - qq, where p and q are primes. [Murthy]

(There is one curio for this number that has not yet been approved by an editor.)

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