2 185 649 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
105104636675117519441	21	66.5	2015-12-09 08:29:49

ECM

Digits	B1	Curves
25	50000	98 / 280

Estimated T-Level: 21.8 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Tom Seitz	2063195C97B1DD93	0
Verified (Factored)	1999-02-14	Brian Doherty	2063195C97B1DD93	316805

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	alpertron	0EFC3495E8A7C948	1	0	1	3
Verified	2017-10-24	Oliver Kruse	0EFC3495E8A7C948	1	445078	1	3

History

Date	User	Type	Result
2017-10-24	Oliver Kruse	C-PRP	M2185649/105104636675117519441 : 0EFC3495E8A7C948 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M2185649/105104636675117519441 : 0EFC3495E8A7C948 PRP: Verified PRP without proof (not generated)
2016-03-27	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-12-09	guru	F-ECM	Factor: 105104636675117519441 / (ECM curve 3, B1=50000, B2=5000000)
2015-03-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-10	Joss	NF-PM1	B1=148732
2014-06-26	-Anonymous-	NF-PM1	B1=119366
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2011-01-13	markr	NF-PM1	B1=90000, B2=1620000, E=6
2010-11-08	Joss	NF-PM1	B1=30000
2010-11-06	-Anonymous-	NF-PM1	B1=15000
2009-01-06	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