Wednesday, October 14, 2009

181

181 is a prime number.

181 can be represented as the sum of two squares: 92 + 102 = 181.

181 is the hypotenuse of a primitive Pythagorean triple: 1812 = 192 + 1802.


181 is a centered square number.


Rusty Romeos was the
181st short film starring the Three Stooges, released October 17, 1957.

Source:
Wikipedia

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