2 099 393 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
214559742288739721558983	24	77.5	2021-01-02 10:28:07

ECM

Digits	B1	Curves
25	50000	152 / 280

Estimated T-Level: 22.7 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Friberg	1054BB236BBBC39A	0
Verified (Factored)	1999-04-13	Kisho Fujihara	1054BB236BBBC39A	1882174
Verified (Factored)	2017-06-13	kkmrkkblmbrbk	1054BB236BBBC39A	777819

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-01-03	Niels_Mache_Nextcloud	143D486DD04EA337	1	1516519	5	3

History

Date	User	Type	Result
2021-01-03	Ben Delo	CERT	PRP Certification Proof certified good
2021-01-03	Niels_Mache_Nextcloud	C-PRP	M2099393/214559742288739721558983 : 143D486DD04EA337 PRP proof power = 7 PRP: Verified Proof certified good
2021-01-02	mnd9	F-ECM	Factor: 214559742288739721558983 / (ECM curve 7, B1=50000, B2=5000000, Sigma=2904672833078397)
2019-04-02	chuenkit	NF	no factor from 2^67 to 2^68
2017-06-14	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2017-06-13	kkmrkkblmbrbk	C-LL	1054BB236BBBC39A
2016-09-25	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-04-27	Joss	NF-PM1	B1=270000, B2=10025056, E=12
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-10-31	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
2013-09-04	ramgeis	NF	no factor from 2^62 to 2^63
2012-03-24	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-23	James Heinrich	NF-PM1	B1=135000, B2=2970000, E=6
2011-01-09	Joss	NF-PM1	B1=50000
2010-12-29	Joss	NF-PM1	B1=30000
2009-08-01	USAFSS	NF-PM1	B1=20000, B2=260000
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61