2 494 123 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
35358060186126819429211871	26	84.9	2021-03-04 21:45:28

ECM

Digits	B1	Curves
25	50000	115 / 280

Estimated T-Level: 22.1 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Bruce Appleby	CD5D5E9F1A16F5DA	0
Verified (Factored)	1999-06-26	Ed Brown	CD5D5E9F1A16F5DA	1572760
Verified (Factored)	2018-06-01	kkmrkkblmbrbk	CD5D5E9F1A16F5DA	1607065

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-03-05	mrh	D2C923F75E435CF1	1	1663017	5	3

History

Date	User	Type	Result
2021-03-05	curtisc	CERT	PRP Certification Proof certified good
2021-03-05	mrh	C-PRP	M2494123/35358060186126819429211871 : D2C923F75E435CF1 PRP proof power = 7 PRP: Verified Proof certified good
2021-03-04	mnd9	F-ECM	Factor: 35358060186126819429211871 / (ECM curve 7, B1=50000, B2=5000000, Sigma=6214817061171385)
2019-04-08	TJAOI	NF	no factor from 2^67 to 2^68
2018-06-01	kkmrkkblmbrbk	C-LL	CD5D5E9F1A16F5DA
2017-07-24	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
2015-12-26	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2015-10-31	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-03	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-03	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-12-04	mikr	NF-PM1	B1=2382500, B2=85770100, E=12
2014-09-10	Joss	NF-PM1	B1=120734
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-11	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-24	Oscar Östlin	NF-PM1	B1=95000, B2=1971250, E=6
2010-12-22	Joss	NF-PM1	B1=20000
2009-01-10	Sturle Sunde	NF	no factor from 2^60 to 2^61