2 636 671 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
103627369788508777	18	56.5	old
100934854920658513791411391	27	86.4	2019-03-27 13:05:09

ECM

Digits	B1	Curves
25	50000	58 / 280

Estimated T-Level: 21.0 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-18	Oliver Kruse	DE66E7F3E230C585	1	2075906	5	3
Verified (Factored)	2017-12-03	kkmrkkblmbrbk	DE66E7F3E230C585	1	1640815	5	3
Verified	2019-03-28	_p95holder_	DE66E7F3E230C585	2	445238	5	3

P-1 factors

Date	Factor	B1	B2
2019-03-27	100934854920658513791411391	2000000	60000000

History

Date	User	Type	Result
2019-03-28	_p95holder_	C-PRP	M2636671/103627369788508777/100934854920658513791411391 : DE66E7F3E230C585 PRP: Verified PRP without proof (not generated)
2019-03-27	alpertron	F-PM1	Factor: 100934854920658513791411391 / (P-1, B1=2000000, B2=60000000, E=12)
2017-12-03	kkmrkkblmbrbk	C-PRP	M2636671/103627369788508777 : DE66E7F3E230C585 PRP: Verified PRP without proof (not generated)
2017-10-18	Oliver Kruse	C-PRP	M2636671/103627369788508777 : DE66E7F3E230C585 PRP: Verified PRP without proof (not generated)