1 874 627 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
3063140519	10	31.5	old
9763057417	10	33.2	2008-07-15 07:47:41
4666430256767	13	42.1	2008-07-15 07:47:41
583200974498885420814911	24	78.9	2020-10-05 19:35:01

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	BA2F15930D70EE67	3	0	1	3
Verified (Factored)	2017-11-07	ATH	BA2F15930D70EE67	3	680974	1	3
Verified	2020-10-06	tottenhoff	FAF8CFF6617601AC	4	1393725	5	3
Verified	2020-10-06	kutens	FAF8CFF6617601AC	4	1109126	5	3

History

Date	User	Type	Result
2020-10-06	Simon Josefsson	CERT	PRP Certification Proof certified good
2020-10-06	kutens	C-PRP	M1874627/3063140519/4666430256767/9763057417/583200974498885420814911 : FAF8CFF6617601AC PRP proof power = 7 PRP: Verified Proof certified good
2020-10-06	tottenhoff	C-PRP	M1874627/3063140519/4666430256767/9763057417/583200974498885420814911 : FAF8CFF6617601AC PRP: Verified PRP without proof (not generated)
2020-10-05	_p95holder_	F-ECM	Factor: 583200974498885420814911 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-07	ATH	C-PRP	M1874627/3063140519/4666430256767/9763057417 : BA2F15930D70EE67 PRP: Verified PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1874627/3063140519/4666430256767/9763057417 : BA2F15930D70EE67 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-07-15	J Feitsma	F	Factor: 9763057417
2008-07-15	J Feitsma	F	Factor: 4666430256767