2 076 407 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
942260576398305713	18	59.7	2015-12-09 13:31:43
85007924487633688027687	23	76.2	2022-11-29 23:51:00
17991116548530310902640393	26	83.9	old

ECM

Digits	B1	Curves
25	50000	109 / 280

Estimated T-Level: 21.9 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		John Guin	D90392F1F275C592	0
Verified (Factored)	1999-02-07	Matthew Gauthier	D90392F1F275C592	663381

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-30	alpertron	AC3DB9AE9518C98D	2	0	1	3
Verified (Factored)	2017-10-21	Oliver Kruse	AC3DB9AE9518C98D	2	329982	1	3
Verified	2022-12-05	mrh	FEAD67819C2AA259	3	471297	5	3

History

Date	User	Type	Result
2022-12-05	Chad Steenerson	CERT	PRP Certification Proof certified good
2022-12-05	mrh	C-PRP	M2076407/17991116548530310902640393/942260576398305713/85007924487633688027687 : FEAD67819C2AA259 PRP proof power = 7 PRP: Verified Proof certified good
2022-11-29	_p95holder_	F-ECM	Factor: 85007924487633688027687 / (ECM curve 2, B1=50000, B2=5000000)
2017-10-21	Oliver Kruse	C-PRP	M2076407/17991116548530310902640393/942260576398305713 : AC3DB9AE9518C98D PRP: Verified (Factored) PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M2076407/17991116548530310902640393/942260576398305713 : AC3DB9AE9518C98D PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-12-09	TJAOI	F	Factor: 942260576398305713 / TF: 59-60