14 380 981 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
4989854447345567508473	22	72.1	2016-10-11 05:49:18

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)	2003-01-16	Aaron B	52FA08A39C4DAD0F	5947627
Verified (Factored)	2003-07-30	Søren Lund Kristensen	52FA08A39C4DAD0F	10672534

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-02-05	Perig	D4529F23099D866F	1	3340441	5	3

History

Date	User	Type	Result
2024-03-13	vsh	NF	no factor from 2^68 to 2^69
2024-03-13	vsh	NF	no factor from 2^67 to 2^68
2023-02-05	curtisc	CERT	PRP Certification Proof certified good
2023-02-05	Perig	C-PRP	M14380981/4989854447345567508473 : D4529F23099D866F PRP proof power = 8 PRP: Verified Proof certified good
2023-01-19	nordi	NF-PM1	B1=300000, B2=214790940
2022-11-15	nordi	NF-PM1	B1=300000
2016-10-11	bam	F-ECM	Factor: 4989854447345567508473 / (ECM curve 1, B1=50000, B2=5000000)
2015-09-26	Nesowa	NF	no factor from 2^66 to 2^67
2014-08-14	Nesowa	NF	no factor from 2^65 to 2^66