2 625 691 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
105027641	9	26.6	old
349109254920383	15	48.3	2014-04-02 10:39:30

ECM

Digits	B1	Curves
25	50000	135 / 280

Estimated T-Level: 22.4 ⓘ

TF below 2^69 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-17	Oliver Kruse	F9867E47E72395CB	2	801046	5	3
Verified	PRP without proof (not generated)	2017-12-02	storm5510	F9867E47E72395CB	2	67336	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	storm5510	C-PRP	M2625691/105027641/349109254920383 : F9867E47E72395CB
2017-10-17	Oliver Kruse	C-PRP	M2625691/105027641/349109254920383 : F9867E47E72395CB
2014-04-02	TJAOI	F	Factor: 349109254920383

Username
Password