2 478 337 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
12664302071	11	33.6	old
2693669788583	13	41.3	2008-07-14 20:24:11

ECM

Digits	B1	Curves
25	50000	231 / 280

Estimated T-Level: 24.1 ⓘ

TF below 2^75 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	A3470B1BDC15D5FB	2	967684	5	3
Verified	PRP without proof (not generated)	2017-11-29	storm5510	A3470B1BDC15D5FB	2	1234364	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-29	storm5510	C-PRP	M2478337/12664302071/2693669788583 : A3470B1BDC15D5FB
2017-10-14	Oliver Kruse	C-PRP	M2478337/12664302071/2693669788583 : A3470B1BDC15D5FB
2008-07-14	George Woltman	F-ECM	Factor: 2693669788583

Username
Password