3 052 591 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
4098519672935698192087	22	71.8	2020-12-20 09:14:10

ECM

Digits	B1	Curves
25	50000	36 / 280

Estimated T-Level: 20.6 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Bernd Wiegmann	3ED7A11CE84B991B	0
Verified (Factored)	1999-05-16	S05770	3ED7A11CE84B991B	548254

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-12-21	Niels_Mache_Nextcloud	7055D313E6CC2576	1	32559	5	3

History

Date	User	Type	Result
2022-09-07	Joss	NF-PM1	B1=1055258, B2=226749600
2022-01-23	Joss	NF-PM1	B1=1055258, B2=119912100
2021-01-16	Joss	NF-PM1	B1=305259, B2=3052591, E=6
2021-01-14	Joss	NF-PM1	B1=305259
2020-12-21	Ben Delo	CERT	PRP Certification Proof certified good
2020-12-21	Niels_Mache_Nextcloud	C-PRP	M3052591/4098519672935698192087 : 7055D313E6CC2576 PRP proof power = 7 PRP: Verified Proof certified good
2020-12-20	daveward2005	F-ECM	Factor: 4098519672935698192087 / (ECM curve 7, B1=50000, B2=5000000, Sigma=3213731800308833)
2018-07-28	ramgeis	NF	no factor from 2^67 to 2^68
2017-10-06	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2017-05-06	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-03-17	Squeeky_Squirrel	NF-PM1	B1=205000, B2=5688750, E=12
2015-06-06	Tha	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2011-03-22	Sid & Andy	NF	no factor from 2^61 to 2^62
2010-10-05	markr	NF-PM1	B1=110000, B2=2447500, E=6
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61