2 137 211 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
4274423	7	22.0	old
95467786082736600522008809	26	86.3	2022-01-20 11:39:07

ECM

Digits	B1	Curves
25	50000	151 / 280

Estimated T-Level: 22.7 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-08	Oliver Kruse	8E003F9E8C906C80	1	0	1	3
Verified (Factored)	2017-11-18	kkmrkkblmbrbk	8E003F9E8C906C80	1	1780480	1	3
Verified	2022-01-22	_p95holder_	1172EA9078954CEA	2	1456359	5	3
Verified	2022-01-25	ATH	1172EA9078954CEA	2	1936564	5	3

History

Date	User	Type	Result
2022-01-25	James Heinrich	CERT	PRP Certification Proof certified good
2022-01-25	ATH	C-PRP	M2137211/4274423/95467786082736600522008809 : 1172EA9078954CEA PRP proof power = 7 PRP: Verified Proof certified good
2022-01-22	_p95holder_	C-PRP	M2137211/4274423/95467786082736600522008809 : 1172EA9078954CEA PRP: Verified PRP without proof (not generated)
2022-01-20	_p95holder_	F-ECM	Factor: 95467786082736600522008809 / (ECM curve 4, B1=50000, B2=5000000)
2017-11-18	kkmrkkblmbrbk	C-PRP	M2137211/4274423 : 8E003F9E8C906C80 PRP: Verified PRP without proof (not generated)
2017-10-08	Oliver Kruse	C-PRP	M2137211/4274423 : 8E003F9E8C906C80 PRP: Verified PRP without proof (not generated)
2016-03-26	alpertron	NF-PM1	B1=500000, B2=15000000, E=12