PrimeGrid Seventeen or Bust

Purpose

To solve the Sierpiński problem by finding a prime of the form k•2ⁿ+1 for each remaining value of k < 78,557.

Status

There are 5 sequences:

• 21181
• 22699
• 24737
• 55459
• 67607

History

• 2016-10-31: 10223•2^31172165+1, eliminating k = 10223 from the search

See also

• Multi Reservation for project
• PrimeGrid
• Seventeen or Bust
• Sierpiński problem

External links

• Seventeen or Bust and the Sierpinski problem - PrimeGrid forums

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