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Random Math Fact:

Did you know:

**Euler’s “lucky” numbers** are positive integers *n* such that *m*^{2} − *m* + *n* is a prime number for *m* = 0, …, *n* − 1.

Leonhard Euler published the polynomial *x*^{2} − *x* + 41 which produces prime numbers for all integer values of *x* from 0 to 40. Obviously, when *x* is equal to 41, the value cannot be prime anymore since it is divisible by 41. Only 6 numbers have this property, namely 2, 3, 5, 11, 17 and 41.

Source: http://en.wikipedia.org/wiki/Lucky_numbers_of_Euler

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