2 790 103 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
3902189006472305115431	22	71.7	2019-12-13 15:44:10

ECM

Digits	B1	Curves
25	50000	85 / 280

Estimated T-Level: 21.5 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		tom ehlert	AF6831041304EA1A	0
Verified (Factored)	1999-06-26	Louis Towles	AF6831041304EA1A	1431947
Verified (Factored)	2018-08-29	kkmrkkblmbrbk	AF6831041304EA1A	2495831

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-12-15	Christoph Zenger	06DE7DD14F308F77	1	2411651	5	3
Verified	2019-12-16	Chang Chia-Tche	06DE7DD14F308F77	1	2015681	5	3

P-1 factors

Date	Factor	B1	B2
2019-12-13	3902189006472305115431	3000000	90000000

History

Date	User	Type	Result
2019-12-16	Chang Chia-Tche	C-PRP	M2790103/3902189006472305115431 : 06DE7DD14F308F77 PRP: Verified PRP without proof (not generated)
2019-12-15	Christoph Zenger	C-PRP	M2790103/3902189006472305115431 : 06DE7DD14F308F77 PRP: Verified PRP without proof (not generated)
2019-12-13	BigBrother	F-PM1	Factor: 3902189006472305115431 / (P-1, B1=3000000, B2=90000000, E=12)
2019-02-26	chuenkit	NF	no factor from 2^67 to 2^68
2018-08-29	kkmrkkblmbrbk	C-LL	AF6831041304EA1A
2017-10-19	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-07-20	Joss	NF-PM1	B1=400000, B2=4000000, E=6
2016-05-05	Joss	NF-PM1	B1=200000, B2=3600000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-09	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-11-01	Joss	NF-PM1	B1=123004
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-03-05	markr	NF	no factor from 2^61 to 2^62
2010-11-23	markr	NF-PM1	B1=100000, B2=2075000, E=6
2010-11-11	Joss	NF-PM1	B1=15000
2009-02-02	Sturle Sunde	NF	no factor from 2^60 to 2^61