3 792 317 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 2⁷¹

TF target 2⁶⁴

TF below 2^80 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	10000000
B2 =	14229841080

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	88 / 640

Estimated T-Level: 25.7 ⓘ

Status	Date	User	Residue	Shift
Verified		Robert Friberg	759347DA8542DC44	0
Verified	1999-09-14	Chris Snyder	759347DA8542DC44	3340771

History

Date	User	Type	Result
2024-09-12	TJAOI	NF	no factor from 2^70 to 2^71
2024-05-07	Joss	NF-PM1	B1=10000000, B2=14229841080
2023-12-06	Joss	NF-PM1	B1=2335812, B2=2514892380
2023-09-04	Joss	NF-PM1	B1=1000000, B2=1508917410
2021-06-07	axn	NF-PM1	B1=14000000, B2=700000000
2021-04-09	axn	NF	no factor from 2^69 to 2^70
2020-12-02	axn	NF	no factor from 2^68 to 2^69
2018-08-20	TJAOI	NF	no factor from 2^67 to 2^68
2016-11-13	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-03-05	omylist	NF	no factor from 2^65 to 2^66
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-01-27	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-27	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-01	Squeeky_Squirrel	NF-PM1	B1=250000, B2=7750000, E=12
2012-04-20	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-04-07	markr	NF	no factor from 2^61 to 2^62
2009-07-15	Carsten Kossendey	NF-PM1	B1=20000, B2=265000
2009-02-28	S485122	NF	no factor from 2^60 to 2^61