2 298 613 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
157901836750271690509571687	27	87.0	2021-09-20 21:01:28

ECM

Digits	B1	Curves
25	50000	167 / 280

Estimated T-Level: 23.0 ⓘ

TF below 2^71 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jason Waddle	FD40205CD20507D5	0
Verified (Factored)	1999-03-15	Eric Paynter	FD40205CD20507D5	2248504
Verified (Factored)	2018-04-30	kkmrkkblmbrbk	FD40205CD20507D5	889419

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-09-20	Luminescence	E6CE3F63B38B97CC	1	516646	5	3

History

Date	User	Type	Result
2023-05-13	This -Anonymous-	NF-PM1	B1=800000, B2=40000000, E=12
2021-09-21	Ben Delo	CERT	PRP Certification Proof certified good
2021-09-20	Luminescence	C-PRP	M2298613/157901836750271690509571687 : E6CE3F63B38B97CC PRP proof power = 7 PRP: Verified Proof certified good
2021-09-20	daveward2005	F-ECM	Factor: 157901836750271690509571687 / (ECM curve 6, B1=50000, B2=5000000, Sigma=333461729054209)
2021-06-10	TJAOI	NF	no factor from 2^68 to 2^69
2019-03-18	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-30	kkmrkkblmbrbk	C-LL	FD40205CD20507D5
2017-05-27	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
2015-11-04	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-12	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-12	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-11-16	c10ck3r	NF-PM1	B1=500000, B2=10000000, E=12
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-05-12	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-17	Oscar Östlin	NF-PM1	B1=90000, B2=1755000, E=6
2010-10-20	Oscar Östlin	NF-PM1	B1=75011
2009-01-15	Sturle Sunde	NF	no factor from 2^60 to 2^61