2 054 369 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
268644800305436143200761	24	77.8	2016-05-05 09:46:25

ECM

Digits	B1	Curves
25	50000	110 / 280

Estimated T-Level: 22.0 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Lawrence Lee	5B351FE90A5F00B3	0
Verified (Factored)	1999-02-07	Nathan Gilbert	5B351FE90A5F00B3	1792722

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-06	Oliver Kruse	4E17C9C50E8E2229	1	0	1	3
Verified	2017-11-15	ATH	4E17C9C50E8E2229	1	166429	1	3

History

Date	User	Type	Result
2023-01-27	USAFSS	NF-PM1	B1=288000, B2=287772030
2017-11-15	ATH	C-PRP	M2054369/268644800305436143200761 : 4E17C9C50E8E2229 PRP: Verified PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2054369/268644800305436143200761 : 4E17C9C50E8E2229 PRP: Verified PRP without proof (not generated)
2016-05-15	Joss	NF-PM1	B1=270000, B2=4860000, E=6
2016-05-05	bam	F-ECM	Factor: 268644800305436143200761 / (ECM curve 3, B1=50000, B2=5000000)
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-11-03	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-26	Joss	NF-PM1	B1=166243
2013-09-01	ramgeis	NF	no factor from 2^62 to 2^63
2012-03-11	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-21	James Heinrich	NF-PM1	B1=135000, B2=2902500, E=6
2011-01-06	Joss	NF-PM1	B1=50000
2010-12-26	Joss	NF-PM1	B1=30000
2009-05-24	Rob_Dee	NF-PM1	B1=20000, B2=280000
2009-01-02	Sturle Sunde	NF	no factor from 2^60 to 2^61