2 128 177 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
12508330523023	14	43.5	old
16849493579095769648046979577	29	93.8	2022-07-07 18:49:11

ECM

Digits	B1	Curves
25	50000	135 / 280

Estimated T-Level: 22.4 ⓘ

TF below 2^69 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	04465D097007D386	1	0	1	3
Verified (Factored)	2017-11-17	kkmrkkblmbrbk	04465D097007D386	1	183080	1	3
Verified	2022-07-09	_p95holder_	231E61E744E550BE	2	1538891	5	3
Verified	2022-07-14	LaurV	231E61E744E550BE	2	441262	5	3

History

Date	User	Type	Result
2022-07-14	curtisc	CERT	PRP Certification Proof certified good
2022-07-14	LaurV	C-PRP	M2128177/12508330523023/16849493579095769648046979577 : 231E61E744E550BE PRP proof power = 6 PRP: Verified Proof certified good
2022-07-09	_p95holder_	C-PRP	M2128177/12508330523023/16849493579095769648046979577 : 231E61E744E550BE PRP: Verified PRP without proof (not generated)
2022-07-07	_p95holder_	F-ECM	Factor: 16849493579095769648046979577 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-17	kkmrkkblmbrbk	C-PRP	M2128177/12508330523023 : 04465D097007D386 PRP: Verified PRP without proof (not generated)
2017-10-08	Oliver Kruse	C-PRP	M2128177/12508330523023 : 04465D097007D386 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12