Proth primes of the form 9267•2n+1

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

Current data

k , b : 9267 , 2 Type : 3Low Count : 10 Nash : 498 Max n : 2,000,000 Date : 2024-10-15 Reserved : PrimeGridPrimeGrid/Reserved

100, 1556, 1966, 2660, 4342, 4468, 5372, 39538, 65386, 142426

Remarks :

Also reserved by Jean Penné for odd n only to n=16,777,215. For additional odd n history, see CRUS Liskovets-Gallot search at Proth 18534•4n+1.

History

• 2024-09-18: Checked to n = 15900175 only odd n, Jean Penné
• 2023-10-21: Checked n = 3322000 - 3486000, PrimeGrid Proth Mega Prime Search
• 1993: Found n = 4468, Jeffrey Young
• 1993: Found n = 4342, Jeffrey Young