2 346 677 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
64870937550288175960639	23	75.8	2021-03-04 16:43:17

ECM

Digits	B1	Curves
25	50000	127 / 280

Estimated T-Level: 22.3 ⓘ

TF below 2^69 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Paul Iverson	6D8A749AA72B3F26	0
Verified (Factored)	1999-03-26	S05790	6D8A749AA72B3F26	759250
Verified (Factored)	2018-05-09	kkmrkkblmbrbk	6D8A749AA72B3F26	1551406

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-03-04	SRJ2877	448EFD5F6BBE08CE	1	2303737	5	3

History

Date	User	Type	Result
2021-03-04	b3g	CERT	PRP Certification Proof certified good
2021-03-04	SRJ2877	C-PRP	M2346677/64870937550288175960639 : 448EFD5F6BBE08CE PRP proof power = 7 PRP: Verified Proof certified good
2021-03-04	mnd9	F-ECM	Factor: 64870937550288175960639 / (ECM curve 1, B1=50000, B2=5000000, Sigma=4232061831598343)
2019-03-04	TJAOI	NF	no factor from 2^67 to 2^68
2018-05-09	kkmrkkblmbrbk	C-LL	6D8A749AA72B3F26
2018-01-27	Sid & Andy	NF-PM1	B1=6000000, B2=180000000, E=12
2017-06-10	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-10-26	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-06	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-06	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-12-04	Luigi Morelli	NF	no factor from 2^62 to 2^63
2012-05-29	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2010-03-02	Bud	NF-PM1	B1=500000, B2=10000000, E=12
2009-01-14	Sturle Sunde	NF	no factor from 2^60 to 2^61