2 470 189 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
489097423	9	28.9	old
140306735201	12	37.0	2008-07-14 20:24:07

ECM

Digits	B1	Curves
25	50000	199 / 280

Estimated T-Level: 23.6 ⓘ

TF below 2^73 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	41FC44EBC9678DAF	2	572824	5	3
Verified	PRP without proof (not generated)	2017-11-29	storm5510	41FC44EBC9678DAF	2	1523150	5	3

History

Date	User	Type	Result
2018-09-28	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-29	storm5510	C-PRP	M2470189/489097423/140306735201 : 41FC44EBC9678DAF
2017-10-14	Oliver Kruse	C-PRP	M2470189/489097423/140306735201 : 41FC44EBC9678DAF
2008-07-14	George Woltman	F-ECM	Factor: 140306735201

Username
Password