2 554 891 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
25548911	8	24.6	old
234033125383	12	37.8	2008-07-14 20:24:58

ECM

Digits	B1	Curves
25	50000	130 / 280

Estimated T-Level: 22.3 ⓘ

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)	2017-10-14	Oliver Kruse	C2E4BA3149164F8F	2	418632	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	C2E4BA3149164F8F	2	1546563	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-01	storm5510	C-PRP	M2554891/25548911/234033125383 : C2E4BA3149164F8F
2017-10-14	Oliver Kruse	C-PRP	M2554891/25548911/234033125383 : C2E4BA3149164F8F
2008-07-14	George Woltman	F-ECM	Factor: 234033125383

Username
Password