2 291 917 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
6339442423	10	32.6	old
680395353844890494023	21	69.2	2022-10-20 11:19:37

ECM

Digits	B1	Curves
25	50000	80 / 280

Estimated T-Level: 21.4 ⓘ

TF below 2^66 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	Oliver Kruse	9F5AFA18DA92BA83	1	0	1	3
Verified (Factored)	2017-11-22	storm5510	9F5AFA18DA92BA83	1	1712832	1	3
Verified	2022-10-20	Kevin_9611	605BBF5857DB6872	2	1623424	5	3

History

Date	User	Type	Result
2022-10-20	ANONYMOUS	CERT	PRP Certification Proof certified good
2022-10-20	Kevin_9611	C-PRP	M2291917/6339442423/680395353844890494023 : 605BBF5857DB6872 PRP proof power = 7 PRP: Verified Proof certified good
2022-10-20	_p95holder_	F-ECM	Factor: 680395353844890494023 / (ECM curve 4, B1=50000, B2=5000000)
2017-11-22	storm5510	C-PRP	M2291917/6339442423 : 9F5AFA18DA92BA83 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-11	Oliver Kruse	C-PRP	M2291917/6339442423 : 9F5AFA18DA92BA83 PRP: Verified (Factored) PRP without proof (not generated)
2016-04-23	alpertron	NF-PM1	B1=500000, B2=15000000, E=12