1 931 053 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
1294779946378543	16	50.2	old
6755591377640207	16	52.6	2014-08-17 11:36:16
139016678290804798391	21	66.9	2020-11-06 10:10:30

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)	2017-10-05	Oliver Kruse	3A1155CED6DAF479	2	0	1	3
Verified (Factored)	2017-11-10	kkmrkkblmbrbk	3A1155CED6DAF479	2	1408156	1	3
Verified	2020-11-06	ATH	43662121F1433CA0	3	980142	5	3

History

Date	User	Type	Result
2020-11-06	Ben Delo	CERT	PRP Certification Proof certified good
2020-11-06	ATH	C-PRP	M1931053/1294779946378543/6755591377640207/139016678290804798391 : 43662121F1433CA0 PRP proof power = 7 PRP: Verified Proof certified good
2020-11-06	nordi	F-ECM	Factor: 139016678290804798391 / (ECM curve 4, B1=50000, B2=5000000, Sigma=6210968488330297)
2017-11-10	kkmrkkblmbrbk	C-PRP	M1931053/1294779946378543/6755591377640207 : 3A1155CED6DAF479 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1931053/1294779946378543/6755591377640207 : 3A1155CED6DAF479 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-08-17	TJAOI	F	Factor: 6755591377640207