3 986 539 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
2397257389183	13	41.1	old
107033158430039	15	46.6	2014-02-18 11:22:00

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	31E5D8E5BAEE41D6	2	0	1	3
Verified	2018-01-04	Oliver Kruse	31E5D8E5BAEE41D6	2	2814868	1	3

History

Date	User	Type	Result
2022-03-17	Joss	NF-PM1	B1=1000000, B2=129198300
2022-01-29	Joss	NF	no factor from 2^67 to 2^68
2020-09-02	Joss	NF-PM1	B1=631000, B2=7973078, E=6
2018-01-04	Oliver Kruse	C-PRP	M3986539/2397257389183/107033158430039 : 31E5D8E5BAEE41D6 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M3986539/107033158430039/2397257389183 : 31E5D8E5BAEE41D6 PRP: Verified PRP without proof (not generated)
2014-02-18	TJAOI	F	Factor: 107033158430039