2 588 969 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
5388119902193368046537	22	72.2	2010-05-20 14:23:35

ECM

Digits	B1	Curves
25	50000	143 / 280

Estimated T-Level: 22.6 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Thomas Honold	A31BCA94F74C048B	0
Verified (Factored)	1999-04-23	Kent Lee	A31BCA94F74C048B	2363413

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-15	Oliver Kruse	B23AF0C4F406121B	1	996972	5	3
Verified	2017-12-02	kkmrkkblmbrbk	B23AF0C4F406121B	1	692590	5	3

History

Date	User	Type	Result
2022-03-11	LordJulius	NF	no factor from 2^1 to 2^60
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	kkmrkkblmbrbk	C-PRP	M2588969/5388119902193368046537 : B23AF0C4F406121B PRP: Verified PRP without proof (not generated)
2017-10-15	Oliver Kruse	C-PRP	M2588969/5388119902193368046537 : B23AF0C4F406121B PRP: Verified PRP without proof (not generated)
2010-05-20	James Classen	F-ECM	Factor: 5388119902193368046537
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61