2 732 831 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
1880741257262816763047	22	70.7	2020-09-01 05:01:53

ECM

Digits	B1	Curves
25	50000	40 / 280

Estimated T-Level: 20.7 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-01-13	Kim Toms	C39CE70C2B065956	0
Verified (Factored)	1999-08-16	Diablo_3	C39CE70C2B065956	663211
Verified (Factored)	2018-08-09	kkmrkkblmbrbk	C39CE70C2B065956	2353504

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-09-04	Team_Inspector	81A66ADC71CB8E90	1	1466583	5	3

History

Date	User	Type	Result
2023-04-18	Kevin_9611	NF-PM1	B1=720000, B2=868549500
2020-09-05	Ben Delo	CERT	PRP Certification Proof certified good
2020-09-04	Team_Inspector	C-PRP	M2732831/1880741257262816763047 : 81A66ADC71CB8E90 PRP proof power = 7 PRP: Verified Proof certified good
2020-09-01	mnd9	F-ECM	Factor: 1880741257262816763047 / (ECM curve 1, B1=50000, B2=5000000, Sigma=8013964568653792)
2019-02-15	chuenkit	NF	no factor from 2^67 to 2^68
2018-08-09	kkmrkkblmbrbk	C-LL	C39CE70C2B065956
2018-07-07	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2017-10-05	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-02-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-04-10	markr	NF	no factor from 2^61 to 2^62
2011-02-28	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-19	Joss	NF-PM1	B1=50000
2010-12-28	Joss	NF-PM1	B1=30000
2010-12-19	Joss	NF-PM1	B1=20000
2009-01-28	Sturle Sunde	NF	no factor from 2^60 to 2^61