2 216 701 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
169706195159	12	37.3	old
590347688881385272583	21	69.0	2022-07-27 08:52:34

ECM

Digits	B1	Curves
25	50000	117 / 280

Estimated T-Level: 22.1 ⓘ

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)	2017-10-11	kkmrkkblmbrbk	9CFA92BAAC631912	1	1723848	5	3
Verified (Factored)	2017-10-26	Oliver Kruse	9CFA92BAAC631912	1	712208	5	3
Verified	2022-07-28	LordJulius	9CFA92BAAC631912	2	1132844	5	3
Verified	2022-07-30	_p95holder_	9CFA92BAAC631912	2	1222256	5	3

History

Date	User	Type	Result
2022-07-30	_p95holder_	C-PRP	M2216701/169706195159/590347688881385272583 : 9CFA92BAAC631912 PRP: Verified PRP without proof (not generated)
2022-07-28	curtisc	CERT	PRP Certification Proof certified good
2022-07-28	LordJulius	C-PRP	M2216701/169706195159/590347688881385272583 : 9CFA92BAAC631912 PRP proof power = 7 PRP: Verified Proof certified good
2022-07-27	_p95holder_	F-ECM	Factor: 590347688881385272583 / (ECM curve 4, B1=50000, B2=5000000)
2017-10-26	Oliver Kruse	C-PRP	M2216701/169706195159 : 9CFA92BAAC631912 PRP: Verified PRP without proof (not generated)
2017-10-11	kkmrkkblmbrbk	C-PRP	M2216701/169706195159 : 9CFA92BAAC631912 PRP: Verified PRP without proof (not generated)
2016-04-25	alpertron	NF-PM1	B1=500000, B2=15000000, E=12