1 926 493 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
415662472295489	15	48.6	old
8584851855393588671719	22	72.9	2021-08-15 19:34:21

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-04	Oliver Kruse	8FBF5C1247558EDF	1	0	1	3
Verified (Factored)	2017-11-10	kkmrkkblmbrbk	8FBF5C1247558EDF	1	1831541	1	3
Verified	2021-08-15	SRJ2877	B36AB0CE42D70CD4	2	1343123	5	3

History

Date	User	Type	Result
2021-08-15	curtisc	CERT	PRP Certification Proof certified good
2021-08-15	SRJ2877	C-PRP	M1926493/415662472295489/8584851855393588671719 : B36AB0CE42D70CD4 PRP proof power = 7 PRP: Verified Proof certified good
2021-08-15	_p95holder_	F-ECM	Factor: 8584851855393588671719 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-10	kkmrkkblmbrbk	C-PRP	M1926493/415662472295489 : 8FBF5C1247558EDF PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1926493/415662472295489 : 8FBF5C1247558EDF PRP: Verified (Factored) PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12