PrimeGrid Woodall Prime Search

Purpose

The goal of this project is to find Woodall primes of the form n•2ⁿ-1.

Status

• search status at PrimeGrid

History

• 2018-03-21: Woodall 17016602•2^17016602-1, Diego Bertolotti (Official announcement)
• 2007-12-21: Woodall 3752948•2^3752948-1, Matthew J. Thompson (Official announcement)
• 2007-08-13: Woodall 2367906•2^2367906-1, Stephen Kohlman (Official announcement)
• 2007-08-04: Woodall 2013992•2^2013992-1, Lasse Mejling Andersen (Official announcement)

See also

• PrimeGrid Cullen Prime Search
• PrimeGrid

External links

• Welcome to the Cullen/Woodall Prime Search - PrimeGrid forums
• Old status not available anymore
• Web archive last edit 2013

PrimeGrid

Miscellaneous

Main

Subprojects

Type Proth : 321 Prime Search 27121 Prime Search Proth Prime Search Proth Prime Search Extended Proth Mega Prime Search Type Sierpiński : Seventeen or Bust Extended Sierpiński Project Prime Sierpiński Problem Sierpiński base 5 Type Riesel : The Riesel Problem Riesel base 5 Type Fermat : Generalized Fermat Prime Search b216+1 b217+1 b218+1 b219+1 b220+1 b221+1 b222+1 Fermat Divisor Search Type Cullen/Woodall : Cullen Prime Search Woodall Prime Search Generalized Cullen Prime Search Type Others : AP27 Search Sophie Germain Search Wieferich and Wall-Sun-Sun Prime Search

Completed

GFN b215+1

Others