PrimeGrid Proth Prime Search

Purpose

Finding primes in the form k•2ⁿ+1 for the following k and n-ranges:

• 51 ≤ k ≤ 57 to n=9000000
• 59 ≤ k ≤ 69 to n=8500000
• 71 ≤ k ≤ 83 to n=8000000
• 85 ≤ k ≤ 103 to n=7500000
• 105 ≤ k ≤ 129 to n=7000000
• 131 ≤ k ≤ 165 to n=6500000
• 167 ≤ k ≤ 213 to n=6000000
• 215 ≤ k ≤ 285 to n=5500000
• 287 ≤ k ≤ 391 to n=5000000
• 393 ≤ k ≤ 557 to n=4500000
• 559 ≤ k ≤ 739 to n=4000000
• 741 ≤ k ≤ 1199 to n=3322000

See additional info in the Proth Prime Search thread.

Multi-Reservation

• here

Current status

• Status

History

• PrimeGrid Wiki

External links

• Forum

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

Projects

Ongoing

Great Internet Mersenne Prime Search (GIMPS) PrimeGrid (PG) Lone Mersenne Hunters (LMH) Riesel Prime Search (RPS) No Prime Left Behind (NPLB) Conjectures 'R Us (CRUS) Twin Prime Search (TPS) Home Prime Search Cunningham project

Terminated

Seventeen or Bust The Other Prime Search (TOPS)