140 198 389 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
2026-05-01	curtisc	PRP	PRP	95.22 %	2026-05-18	2026-05-19

P-1

B1 =	1191000
B2 =	1289357520

History

Date	User	Type	Result
2024-09-26	Luke Durant	NF-PM1	B1=1191000, B2=1289357520
2024-08-26	Ryan Propper	NF	no factor TF: 76-77
2023-11-22	tsc	NF	no factor TF: 75-76
2023-01-19	SRBase	NF	no factor TF: 74-75
2021-11-02	SRBase	NF	no factor TF: 73-74
2020-10-23	SRBase	NF	no factor TF: 72-73
2017-04-26	megavink	NF	no factor TF: 71-72
2017-02-18	JoDu	NF	no factor TF: 70-71
2015-05-06	Judge Hale	NF	no factor TF: 69-70
2015-05-06	Judge Hale	NF	no factor TF: 68-69
2015-05-06	Judge Hale	NF	no factor TF: 67-68
2015-02-13	vwflat4	NF	no factor TF: 66-67
2012-11-27	KayJongsma	NF	no factor TF: 65-66
2010-12-09	Mr-Plonk	NF	no factor TF: 64-65
2010-06-14	Charles A. Morris	NF	no factor TF: 63-64