11 095 571 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 2⁷³

TF target 2⁶⁸

P-1

B1 =	7000000
B2 =	16740918810

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2000-12-07	Tony Di Bona	ED332960ACE8F1A8	2570450
Verified	2004-05-25	greg3ll	ED332960ACE8F1A8	5815876

History

Date	User	Type	Result
2024-11-17	TheJudger	NF	no factor from 2^72 to 2^73
2023-12-14	linament	NF-PM1	B1=7000000, B2=16740918810
2023-12-13	linament	NF-PM1	B1=7000000
2022-01-02	LaurV	NF-PM1	B1=6189107, B2=185673210
2021-10-29	SRBase	NF	no factor from 2^71 to 2^72
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
2017-12-19	ramgeis	NF	no factor from 2^68 to 2^69
2017-12-19	ramgeis	NF	no factor from 2^67 to 2^68
2015-12-18	VictordeHollander	NF	no factor from 2^66 to 2^67
2015-05-29	Nesowa	NF	no factor from 2^65 to 2^66
2014-04-08	Tha	NF-PM1	B1=250000, B2=5000000, E=6
2013-11-28	lycorn	NF	no factor from 2^64 to 2^65