2 098 097 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
2602274064481067355641	22	71.1	2022-06-04 04:32:42
1279616563434846503189087	25	80.1	old

ECM

Digits	B1	Curves
25	50000	105 / 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)	1998-02-08	Ed Winchester	F19A2BCB57B0F7E7	0
Verified (Factored)	1999-01-29	David Moore	F19A2BCB57B0F7E7	761976

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-06	Oliver Kruse	F7ACA325C5762F30	1	0	1	3
Verified (Factored)	2017-11-17	kkmrkkblmbrbk	F7ACA325C5762F30	1	425199	1	3
Verified	2022-06-10	Poao	87DAD619C41D0768	2	1565767	5	3

History

Date	User	Type	Result
2022-06-10	qtdszws	CERT	PRP Certification Proof certified good
2022-06-10	Poao	C-PRP	M2098097/1279616563434846503189087/2602274064481067355641 : 87DAD619C41D0768 PRP proof power = 7 PRP: Verified Proof certified good
2022-06-04	_p95holder_	F-ECM	Factor: 2602274064481067355641 / (ECM curve 6, B1=50000, B2=5000000)
2017-11-17	kkmrkkblmbrbk	C-PRP	M2098097/1279616563434846503189087 : F7ACA325C5762F30 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2098097/1279616563434846503189087 : F7ACA325C5762F30 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12