3 781 909 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
634458121911081044113	21	69.1	2012-04-15 14:47:43

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Rich Harms	AADF18842F3AF9A1	0
Verified (Factored)	2000-02-09	Brian Beckham	AADF18842F3AF9A1	1041705

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	E96F1FC8DEA49970	1	0	1	3
Verified	2017-12-08	Oliver Kruse	E96F1FC8DEA49970	1	3349531	1	3

History

Date	User	Type	Result
2024-04-22	Dylan Delgado	NF-PM1	B1=1000000, B2=4124200080
2022-05-25	Joss	NF-PM1	B1=200000, B2=130364850
2017-12-08	Oliver Kruse	C-PRP	M3781909/634458121911081044113 : E96F1FC8DEA49970 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M3781909/634458121911081044113 : E96F1FC8DEA49970 PRP: Verified PRP without proof (not generated)
2012-04-15	Squeeky_Squirrel	F-PM1	Factor: 634458121911081044113
2012-03-23	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-04-16	markr	NF	no factor from 2^61 to 2^62
2009-07-14	Carsten Kossendey	NF-PM1	B1=20000, B2=265000
2009-03-01	S485122	NF	no factor from 2^60 to 2^61