14 991 619 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
42859110650320148150591039	26	85.1	2016-11-18 20:00:02

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	2002-04-28	James Smith	E6625F25B7E7E3A9	108071
Verified (Factored)	2006-05-29	Phil Nelson	E6625F25B7E7E3A9	5513348

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-06-05	rucio	B70723C64B370621	1	2316469	5	3

History

Date	User	Type	Result
2023-06-05	SANGPIL HAN	CERT	PRP Certification Proof certified good
2023-06-05	rucio	C-PRP	M14991619/42859110650320148150591039 : B70723C64B370621 PRP proof power = 8 PRP: Verified Proof certified good
2023-05-26	nordi	NF-PM1	B1=300000, B2=320708850
2023-04-03	nordi	NF-PM1	B1=300000
2016-11-18	Sergey Nosov	F-ECM	Factor: 42859110650320148150591039 / (ECM curve 1, B1=50000, B2=5000000)
2016-03-16	Mark Rose	NF	no factor from 2^65 to 2^66
2015-10-25	Nesowa	NF	no factor from 2^66 to 2^67