Friday, September 23, 2011

857

857 is a prime number.

857 has a representation as a sum of two squares: 857 = 42 + 292.

857 and 859 form a twin prime pair.

857 is the hypotenuse of a primitive Pythagorean triple: 8572 = 2322 + 8252.

142,857 x 5 = 714,285 = 8572 - 1422, where 857,142 = 142,857 x 6.

857 is 1011202 in base 3. It is 272 in base 19.

857 is the sum of three consecutive primes: 857 = 281 + 283 + 293.

Glasenappia 857 is an asteroid discovered in 1916.

Source: Wikipedia

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