11 682 191 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with Lucas-Lehmer test

TF

No factors below 2⁷⁵

TF target 2⁶⁸

P-1

B1 =	14065360
B2 =	121261590450

ECM

Digits	B1	Curves
25	50000	110 / 280

Estimated T-Level: 22.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2001-01-28	INTERSHOP Communications	AE5D2216493301B2	0
Verified	2004-04-09	George Woltman	AE5D2216493301B2	4613421

History

Date	User	Type	Result
2025-01-08	yuriy_5-1	NF	no factor from 2^74 to 2^75
2025-01-08	yuriy_5-1	NF	no factor from 2^73 to 2^74
2024-09-02	yuriy_5-1	NF	no factor from 2^72 to 2^73
2024-08-28	yuriy_5-1	NF-PM1	B1=14065360, B2=121261590450
2022-11-09	Architects Cubed	NF	no factor from 2^71 to 2^72
2021-08-18	LaurV	NF-PM1	B1=6189107, B2=185673210
2021-08-15	SRBase	NF	no factor from 2^70 to 2^71
2021-08-06	SRBase	NF	no factor from 2^69 to 2^70
2018-01-14	ramgeis	NF	no factor from 2^68 to 2^69
2018-01-14	ramgeis	NF	no factor from 2^67 to 2^68
2016-02-08	VictordeHollander	NF	no factor from 2^66 to 2^67
2014-12-20	Nesowa	NF	no factor from 2^65 to 2^66
2013-10-30	lycorn	NF	no factor from 2^64 to 2^65