Thursday, February 12, 2009

920

920 = 23 x 5 x 23.

920 is a truncated cube number.

920 is a number n such that n2 is the sum of two successive primes: 9202 = 846,400 = 423,191 + 423,209.

920 is the maximum number of regions into which 18 triangles divide the plane.


Telephone area code 920 covers Milwaukee, Wisconsin.

Source: What's Special About This Number

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