2 374 153 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
103117102605340342872735623	27	86.4	2010-02-12 10:20:09

ECM

Digits	B1	Curves
25	50000	174 / 280

Estimated T-Level: 23.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Jeremy Goulstone	80B2118C689EEE90	0
Verified (Factored)	1999-04-13	Russell Heilling	80B2118C689EEE90	1004621

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-12	Oliver Kruse	B0198B60B99B8B17	1	2257107	5	3
Verified	2017-11-25	kkmrkkblmbrbk	B0198B60B99B8B17	1	1522695	5	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-25	kkmrkkblmbrbk	C-PRP	M2374153/103117102605340342872735623 : B0198B60B99B8B17 PRP: Verified PRP without proof (not generated)
2017-10-12	Oliver Kruse	C-PRP	M2374153/103117102605340342872735623 : B0198B60B99B8B17 PRP: Verified PRP without proof (not generated)
2010-02-12	Bud	F-PM1	Factor: 103117102605340342872735623
2009-01-14	Sturle Sunde	NF	no factor from 2^60 to 2^61