Friday, October 2, 2009

701

701 is a prime number.

701, 7001, 70001, and 700001 are each prime.

2701 + 701 is prime.

701 = 54 + 43 + 32 + 21 + 10.

701 has a representation as a sum of two squares: 701 = 52 + 262.

701 is the hypotenuse of a primitive Pythagorean triple: 7012 = 2602 + 6512.


The IBM 701 was the company's first production-line electronic digital computer, announced to the public in 1952.

Source: Prime Curios!

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