2 089 273 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
29457926222544559	17	54.7	old
9985101096552008169278111	25	83.0	2022-01-23 20:37:02

ECM

Digits	B1	Curves
25	50000	106 / 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	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-06	Oliver Kruse	9498B95D3D43FAA2	1	0	1	3
Verified (Factored)	2017-11-16	kkmrkkblmbrbk	9498B95D3D43FAA2	1	1157318	1	3
Verified	2022-01-23	SRJ2877	E8995F96D421D1A0	2	611161	5	3

History

Date	User	Type	Result
2022-01-24	James Heinrich	CERT	PRP Certification Proof certified good
2022-01-23	SRJ2877	C-PRP	M2089273/29457926222544559/9985101096552008169278111 : E8995F96D421D1A0 PRP proof power = 7 PRP: Verified Proof certified good
2022-01-23	_p95holder_	F-ECM	Factor: 9985101096552008169278111 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-16	kkmrkkblmbrbk	C-PRP	M2089273/29457926222544559 : 9498B95D3D43FAA2 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2089273/29457926222544559 : 9498B95D3D43FAA2 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12