3 126 437 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
9976935848100689616319	22	73.1	2021-01-23 13:06:34

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)		Dax Prather	1185402F5846B0D3	0
Verified (Factored)	1998-08-09	Dennis Sell	1185402F5846B0D3	0
Verified (Factored)	1999-06-26	Jason Gibson	1185402F5846B0D3	2265415

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-01-24	mrh	69ADEE78903FAE51	1	1077806	5	3

History

Date	User	Type	Result
2022-08-21	Joss	NF-PM1	B1=3126437, B2=354763500
2021-01-24	curtisc	CERT	PRP Certification Proof certified good
2021-01-24	mrh	C-PRP	M3126437/9976935848100689616319 : 69ADEE78903FAE51 PRP proof power = 7 PRP: Verified Proof certified good
2021-01-23	nordi	F-ECM	Factor: 9976935848100689616319 / (ECM curve 7, B1=50000, B2=6750000, Sigma=4859834394514060)
2019-01-14	TJAOI	NF	no factor from 2^67 to 2^68
2018-07-15	Joss	NF-PM1	B1=1820000, B2=5460000, E=6
2017-04-15	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-10-01	Squeeky_Squirrel	NF-PM1	B1=195000, B2=5460000, E=12
2015-06-14	Tha	NF	no factor from 2^65 to 2^66
2015-02-11	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-11	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2011-11-15	markr	NF	no factor from 2^61 to 2^62
2011-08-29	Squeeky_Squirrel	NF-PM1	B1=105000, B2=2152500, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=180000
2009-04-14	S485122	NF	no factor from 2^60 to 2^61