9 345 143 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
137563357596169598479	21	66.9	2014-07-25 19:03:38

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	2000-02-23	Richard Roddy	53410F57BBAEF008	2520156
Verified (Factored)	2003-04-27	Marc Getty / Phil Fizur	53410F57BBAEF008	8509761

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-08-31	Justine V.	BD56B73DE83921E5	1	6302892	5	3
Verified	2020-11-18	Team_Inspector	BD56B73DE83921E5	1	5045968	5	3

History

Date	User	Type	Result
2020-11-18	Ben Delo	CERT	PRP Certification Proof certified good
2020-11-18	Team_Inspector	C-PRP	M9345143/137563357596169598479 : BD56B73DE83921E5 PRP proof power = 8 PRP: Verified Proof certified good
2019-08-31	Justine V.	C-PRP	M9345143/137563357596169598479 : BD56B73DE83921E5 PRP: Verified PRP without proof (not generated)
2014-07-25	swildner	F-ECM	Factor: 137563357596169598479 / (ECM curve 2, B1=50000, B2=5000000)
2013-09-06	Nesowa	NF	no factor from 2^64 to 2^65