2 166 289 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
35325696895362179599	20	64.9	2013-05-07 16:18:52

ECM

Digits	B1	Curves
25	50000	132 / 280

Estimated T-Level: 22.4 ⓘ

TF below 2^69 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jeff Woods	287435A26F75CE0C	0
Verified (Factored)	1999-02-14	Tyrone Mills	287435A26F75CE0C	1346568

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-09	Oliver Kruse	87E75539738A567C	1	0	1	3
Verified	2017-11-23	kkmrkkblmbrbk	87E75539738A567C	1	1993426	1	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-11-23	kkmrkkblmbrbk	C-PRP	M2166289/35325696895362179599 : 87E75539738A567C PRP: Verified PRP without proof (not generated)
2017-10-09	Oliver Kruse	C-PRP	M2166289/35325696895362179599 : 87E75539738A567C PRP: Verified PRP without proof (not generated)
2016-03-30	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2013-05-07	hiems	F-ECM	Factor: 35325696895362179599
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2011-01-21	markr	NF-PM1	B1=120000, B2=2370000, E=6
2011-01-15	Joss	NF-PM1	B1=50000
2010-12-30	Joss	NF-PM1	B1=30000
2010-11-03	Joss	NF-PM1	B1=20000
2009-01-08	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-04	Sturle Sunde	NF	no factor from 2^60 to 2^61