5 972 779 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
4038360579724630870791315020329	31	101.7	2019-09-21 03:16:33

ECM

Digits	B1	Curves
25	50000	9 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-10-29	Lloyd A. Murray Jr.	9B574C44143F8917	0
Verified (Factored)	2002-01-22	Stephen Wood	9B574C44143F8917	1575070

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-09-21	ATH	1105307DDF8CB8AD	1	1788483	5	3
Verified	2019-09-22	GAN	1105307DDF8CB8AD	1	534610	5	3

History

Date	User	Type	Result
2019-09-22	GAN	C-PRP	M5972779/4038360579724630870791315020329 : 1105307DDF8CB8AD PRP: Verified PRP without proof (not generated)
2019-09-21	ATH	C-PRP	M5972779/4038360579724630870791315020329 : 1105307DDF8CB8AD PRP: Verified PRP without proof (not generated)
2019-09-21	IanGlencross	F-ECM	Factor: 4038360579724630870791315020329 / (ECM curve 3, B1=50000, B2=5000000)
2019-07-28	USAFSS	NF-PM1	B1=360000, B2=10890000, E=12
2018-04-11	ramgeis	NF	no factor from 2^67 to 2^68
2016-06-18	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-28	snme2pm1	NF	no factor from 2^65 to 2^66
2014-10-03	monst	NF	no factor from 2^64 to 2^65
2014-10-01	Nesowa	NF	no factor from 2^63 to 2^64
2010-12-09	Squeeky_Squirrel	NF-PM1	B1=70000, B2=1155000, E=6