3 468 293 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
8369981179417143235425196079	28	92.8	2021-10-27 08:59:17

ECM

Digits	B1	Curves
25	50000	53 / 280

Estimated T-Level: 20.9 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-05-01	Bryan Koen	0AACF1BA16C0AE6C	0
Verified (Factored)	2000-02-01	Ronald M. Sorli	0AACF1BA16C0AE6C	798142

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-10-27	MarkS	88089BC063B7C1F6	1	1644422	5	3

History

Date	User	Type	Result
2022-04-10	Joss	NF-PM1	B1=1000000, B2=126668850
2021-10-27	Fabrice Bellet	CERT	PRP Certification Proof certified good
2021-10-27	MarkS	C-PRP	M3468293/8369981179417143235425196079 : 88089BC063B7C1F6 PRP proof power = 7 PRP: Verified Proof certified good
2021-10-27	MarkS	F-ECM	Factor: 8369981179417143235425196079 / (ECM curve 10, B1=50000, B2=5000000, Sigma=1435485868418128)
2021-03-30	axn	NF-PM1	B1=20000000, B2=1000000000
2021-01-08	axn	NF	no factor from 2^68 to 2^69
2019-01-28	TJAOI	NF	no factor from 2^67 to 2^68
2017-02-10	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-01-04	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-24	HBendtz	NF-PM1	B1=500000, B2=10000000, E=12
2014-07-28	Joss	NF-PM1	B1=78506
2012-08-18	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-11-10	USAFSS	NF-PM1	B1=60000, B2=990000, E=6
2011-07-23	markr	NF	no factor from 2^61 to 2^62
2009-07-06	Carsten Kossendey	NF-PM1	B1=20000, B2=235000
2009-03-21	S485122	NF	no factor from 2^60 to 2^61