2 580 563 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
37950069145561	14	45.1	old
4209318069806725252033	22	71.8	2019-01-16 10:23:21
280727145023656162431511993	27	87.9	2019-01-16 10:23:21

ECM

Digits	B1	Curves
25	50000	116 / 280

Estimated T-Level: 22.1 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-15	Oliver Kruse	5D4F66ECFFE8A8FC	1	2201828	5	3
Verified (Factored)	2017-12-02	kkmrkkblmbrbk	5D4F66ECFFE8A8FC	1	887922	5	3
Verified	2019-01-16	ATH	5D4F66ECFFE8A8FC	3	2238620	5	3

P-1 factors

Date	Factor	B1	B2
2019-01-16	1181669844233328993787875966509796615654187131769	2000000	60000000

History

Date	User	Type	Result
2019-01-16	ATH	C-PRP	M2580563/37950069145561/4209318069806725252033/280727145023656162431511993 : 5D4F66ECFFE8A8FC PRP: Verified PRP without proof (not generated)
2019-01-16	alpertron	F-PM1	Factor: 1181669844233328993787875966509796615654187131769 / (P-1, B1=2000000, B2=60000000, E=12)
2017-12-02	kkmrkkblmbrbk	C-PRP	M2580563/37950069145561 : 5D4F66ECFFE8A8FC PRP: Verified PRP without proof (not generated)
2017-10-15	Oliver Kruse	C-PRP	M2580563/37950069145561 : 5D4F66ECFFE8A8FC PRP: Verified PRP without proof (not generated)