2 312 677 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
1035589892452058111975761	25	79.8	2010-02-15 08:09:43

ECM

Digits	B1	Curves
25	50000	178 / 280

Estimated T-Level: 23.2 ⓘ

TF below 2^72 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Brlej	F316B02683F8842E	0
Verified (Factored)	1999-03-01	Robert Mutschler	F316B02683F8842E	580401

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-11	Oliver Kruse	52A7B9C502444481	1	0	1	3
Verified	2017-11-23	kkmrkkblmbrbk	52A7B9C502444481	1	1762445	1	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2021-04-07	ViliamF	NF-PM1	B1=5000000, B2=505000000
2018-02-26	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2017-11-23	kkmrkkblmbrbk	C-PRP	M2312677/1035589892452058111975761 : 52A7B9C502444481 PRP: Verified PRP without proof (not generated)
2017-10-11	Oliver Kruse	C-PRP	M2312677/1035589892452058111975761 : 52A7B9C502444481 PRP: Verified PRP without proof (not generated)
2010-02-15	Bud	F-PM1	Factor: 1035589892452058111975761
2009-01-15	Sturle Sunde	NF	no factor from 2^60 to 2^61