2 843 627 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 4 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
73934303	8	26.1	old
7846349942566991	16	52.8	2014-08-24 11:22:52
109527504407871689	18	56.6	2015-04-16 11:24:12
465533550463296233	18	58.7	2015-09-24 11:23:05

ECM

Digits	B1	Curves
25	50000	59 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-22	Oliver Kruse	A411573D71868966	4	2226676	5	3
Verified	2017-12-07	kkmrkkblmbrbk	A411573D71868966	4	996264	5	3

History

Date	User	Type	Result
2023-02-03	USAFSS	NF-PM1	B1=360000, B2=287380170
2017-12-07	kkmrkkblmbrbk	C-PRP	M2843627/73934303/7846349942566991/109527504407871689/465533550463296233 : A411573D71868966 PRP: Verified PRP without proof (not generated)
2017-10-22	Oliver Kruse	C-PRP	M2843627/73934303/7846349942566991/109527504407871689/465533550463296233 : A411573D71868966 PRP: Verified PRP without proof (not generated)
2015-09-24	TJAOI	F	Factor: 465533550463296233 / TF: 58-59
2015-04-16	TJAOI	F	Factor: 109527504407871689 / TF: 56-57
2014-08-24	TJAOI	F	Factor: 7846349942566991