Pierpont prime


A Pierpont primeMathworldPlanetmath is a prime numberMathworldPlanetmath of the form p=1+2x3y with -1<yx. If x>0 and y=0 then the resulting prime is a Fermat primeMathworldPlanetmath. In the Erdős-Selfridge classification of primes (http://planetmath.org/ErdHosSelfridgeClassificationOfPrimes), the Pierpont primes are class 1-. The first few Pierpont primes are 2, 3, 5, 7, 13, 17, 19, 37, 73, 97, 109, 163, 193, 257, 433, 487, 577, 769, etc., listed in A005109 of Sloane’s OEIS.

In 1988, Gleason showed that an n-sided regular polygonMathworldPlanetmath can be constructed with ruler and compass if n is the product of two Pierpont primes.

Title Pierpont prime
Canonical name PierpontPrime
Date of creation 2013-03-22 16:52:39
Last modified on 2013-03-22 16:52:39
Owner PrimeFan (13766)
Last modified by PrimeFan (13766)
Numerical id 4
Author PrimeFan (13766)
Entry type Definition
Classification msc 11A41