5 937 889 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
40606262915121983087	20	65.1	2018-06-21 11:40:17
3190621542856533409146278640127597591	37	121.3	2014-11-16 09:29:34

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)	1998-10-25	John N. Kemeny	D268329F19634467	0
Verified (Factored)	2001-03-17	Bruce Loving	D268329F19634467	3427124

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	78921C9EA591A370	1	0	1	3
Verified	2018-06-21	francijezek	4C26E9FBBB800B55	2	595643	5	3
Verified	2018-06-23	kkmrkkblmbrbk	4C26E9FBBB800B55	2	1117571	5	3

P-1 factors

Date	Factor	B1	B2
2014-11-16	3190621542856533409146278640127597591	360000	8910000

History

Date	User	Type	Result
2022-06-22	LordJulius	NF	no factor from 2^62 to 2^63
2018-06-23	kkmrkkblmbrbk	C-PRP	M5937889/3190621542856533409146278640127597591/40606262915121983087 : 4C26E9FBBB800B55 PRP: Verified PRP without proof (not generated)
2018-06-21	francijezek	C-PRP	M5937889/3190621542856533409146278640127597591/40606262915121983087 : 4C26E9FBBB800B55 PRP: Verified PRP without proof (not generated)
2018-06-21	TJAOI	F	Factor: 40606262915121983087 / TF: 65-66
2017-09-20	kkmrkkblmbrbk	C-PRP	M5937889/3190621542856533409146278640127597591 : 78921C9EA591A370 PRP: Verified PRP without proof (not generated)
2014-11-16	Nesowa	F-PM1	Factor: 3190621542856533409146278640127597591 / (P-1, B1=360000, B2=8910000, E=12)
2014-09-30	monst	NF	no factor from 2^64 to 2^65
2014-09-29	Nesowa	NF	no factor from 2^63 to 2^64
2011-03-17	USAFSS	NF-PM1	B1=70000, B2=1120000, E=6