2 188 181 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
3096031529648805596377	22	71.4	2013-05-17 18:30:17

ECM

Digits	B1	Curves
25	50000	109 / 280

Estimated T-Level: 21.9 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Mark Kness	6E23999486D3491D	0
Verified (Factored)	1999-06-15	Alexey Guzeev	6E23999486D3491D	395951

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-09	Oliver Kruse	45E42467E0684CA7	1	0	1	3
Verified	2017-11-19	kkmrkkblmbrbk	45E42467E0684CA7	1	646248	1	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-11-19	kkmrkkblmbrbk	C-PRP	M2188181/3096031529648805596377 : 45E42467E0684CA7 PRP: Verified PRP without proof (not generated)
2017-10-09	Oliver Kruse	C-PRP	M2188181/3096031529648805596377 : 45E42467E0684CA7 PRP: Verified PRP without proof (not generated)
2016-03-29	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2013-05-17	jim f in mn	F-ECM	Factor: 3096031529648805596377
2011-01-12	markr	NF-PM1	B1=90000, B2=1620000, E=6
2010-11-08	Joss	NF-PM1	B1=30000
2010-11-04	Joss	NF-PM1	B1=15000
2009-01-08	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-02	Sturle Sunde	NF	no factor from 2^60 to 2^61