61

This number is a prime.

Single Curio View: (Seek other curios for this number)

The least prime such that its square can be expressed as the sum of one, two, three, or four distinct squares: 61² = 60² + 11² = 52² + 24² + 21² = 56² + 22² + 10² + 1². [Rupinski]

Submitted: 2002-12-10 20:59:24; Last Modified: 2008-01-30 17:28:00.