2 823 133 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
8846405827087	13	43.0	old
57943793487871456199	20	65.7	2019-02-28 12:22:22

ECM

Digits	B1	Curves
25	50000	80 / 280

Estimated T-Level: 21.4 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-22	Oliver Kruse	270E5207D8FFA365	1	420563	5	3
Verified (Factored)	2017-12-07	kkmrkkblmbrbk	270E5207D8FFA365	1	803188	5	3
Verified	2019-02-28	ATH	270E5207D8FFA365	2	1168950	5	3
Verified	2019-03-15	alex	270E5207D8FFA365	2	415832	5	3

History

Date	User	Type	Result
2022-08-25	USAFSS	NF-PM1	B1=360000, B2=287380170
2019-03-15	alex	C-PRP	M2823133/8846405827087/57943793487871456199 : 270E5207D8FFA365 PRP: Verified PRP without proof (not generated)
2019-02-28	ATH	C-PRP	M2823133/8846405827087/57943793487871456199 : 270E5207D8FFA365 PRP: Verified PRP without proof (not generated)
2019-02-28	TJAOI	F	Factor: 57943793487871456199 / TF: 65-66
2017-12-07	kkmrkkblmbrbk	C-PRP	M2823133/8846405827087 : 270E5207D8FFA365 PRP: Verified PRP without proof (not generated)
2017-10-22	Oliver Kruse	C-PRP	M2823133/8846405827087 : 270E5207D8FFA365 PRP: Verified PRP without proof (not generated)