Proth primes of the form 6219•2n+1

Reserved! This sequence is currently part of Multi Reservation 25: PrimeGrid Proth Prime Search Extended.

Current data

k , b : 6219 , 2 Type : 3 Count : 39 Nash : 1826 Max n : 2,000,000 Date : 2024-10-15 Reserved : PrimeGridPrimeGrid/Reserved

2, 17, 27, 74, 101, 231, 401, 437, 575, 671, 690, 5250, 7062, 8378, 8439, 8667, 33762, 41670, 42599, 42701, 69582, 73215, 73814, 75698, 77126, 91217, 97626, 173495, 202155, 292037, 324942, 366926, 490671, 627638, 1025235, 1436922, 1623869, 3333810, 3374198

History

• 2023-10-21: Checked n = 3322000 - 3486000, PrimeGrid Proth Mega Prime Search
• 2021-08-03: Found n = 3374198, Daniel Zuyuan Lu, PrimeGrid Proth Mega Prime Search
• 2021-02-11: Found n = 1623869, Steven Wong, PrimeGrid Proth Prime Search Extended
• 2020-05-12: Found n = 3333810, Mike Kinney, PrimeGrid Proth Mega Prime Search
• 2017-02-09: Found n = 1436922, Tom Greer, PrimeGrid Proth Prime Search Extended
• 2012-10-14: Found n = 1025235, Raphaël Jeudy, PrimeGrid Proth Prime Search Extended
• 2011-02-09: Found n = 627638, Frans Englund, PrimeGrid Proth Prime Search Extended
• 2010-02-24: Found n = 490671, Bruno Fernandes, PrimeGrid Proth Prime Search Extended
• 1999-05-28: Found n = 42599, Tadashi Taura
• 1996-03: Found n = 7062, Patrick Demichel