140 550 521 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

No known factors, not tested for primality

No factors below 2⁷⁷

TF target 2⁷⁷

Assignments

Assigned	User	Work Type	Stage	% Done	Updated	Est Complete	Expired
2026-06-03	00028ECB	PRP	PRP	44.58 %	2026-06-14	2026-06-24

P-1

B1 =	1181000
B2 =	1138773900

History

Date	User	Type	Result
2024-09-27	Luke Durant	NF-PM1	B1=1181000, B2=1138773900
2024-08-24	Luke Durant	NF	no factor TF: 76-77
2024-03-10	tsc	NF	no factor TF: 75-76
2023-01-18	SRBase	NF	no factor TF: 74-75
2021-11-12	SRBase	NF	no factor TF: 73-74
2020-10-25	SRBase	NF	no factor TF: 72-73
2016-09-29	nate.anders	NF	no factor TF: 71-72
2016-03-29	Ready4PrimeTime	NF	no factor TF: 70-71
2015-05-17	Judge Hale	NF	no factor TF: 69-70
2015-05-17	Judge Hale	NF	no factor TF: 68-69
2015-05-17	Judge Hale	NF	no factor TF: 67-68
2015-02-15	nikosz	NF	no factor TF: 66-67
2012-11-29	AKAxAuto	NF	no factor TF: 65-66
2010-12-10	M Rafi	NF	no factor TF: 64-65
2010-06-14	Torchwood Institute	NF	no factor TF: 63-64