2 044 909 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
4907442744931431303799	22	72.1	2015-07-09 22:41:28

ECM

Digits	B1	Curves
25	50000	136 / 280

Estimated T-Level: 22.4 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		phil kenny	7D580FD206C8CEA7	0
Verified (Factored)	1999-02-07	Shaun Griffith	7D580FD206C8CEA7	885021

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-06	Oliver Kruse	776FCFD32C28FBC9	1	0	1	3
Verified	2017-11-15	Chang Chia-Tche	776FCFD32C28FBC9	1	1797284	1	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-11-15	Chang Chia-Tche	C-PRP	M2044909/4907442744931431303799 : 776FCFD32C28FBC9 PRP: Verified PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2044909/4907442744931431303799 : 776FCFD32C28FBC9 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-07-09	guru	F-ECM	Factor: 4907442744931431303799 / (ECM curve 3, B1=50000, B2=5000000)
2015-04-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-22	Joss	NF-PM1	B1=166387
2013-08-30	ramgeis	NF	no factor from 2^62 to 2^63
2012-02-28	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2012-01-04	Squeeky_Squirrel	NF-PM1	B1=135000, B2=2868750, E=6
2011-01-04	Joss	NF-PM1	B1=50000
2010-12-28	Joss	NF-PM1	B1=30000
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61