Wednesday, May 30, 2012

274

274 = 2 x 137.

274 has a representation as a sum of two squares: 274 = 72 + 152.

274 is a centered triangular number.

274 is the maximum number of regions into which 17 circles divide the plane.

(274 - 2)2 + (274 - 7)7 + (274 - 4)4 is a prime.

The 274th Lucas number plus 274 is a prime.

274 is the sum of five positive cubes: 274 = 3(23) + 2(53).


Source: Prime Curios!

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