14 976 259 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
9375690515712396562769	22	73.0	2016-11-21 23:05:46

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)	2002-06-23	Mark Thomas	664C7C23F77C7205	9653809
Verified (Factored)	2006-03-28	Donald Cowart	664C7C23F77C7205	6403486

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-06-03	Perig	2F429F50AA088C00	1	11621581	5	3

History

Date	User	Type	Result
2023-06-04	curtisc	CERT	PRP Certification Proof certified good
2023-06-03	Perig	C-PRP	M14976259/9375690515712396562769 : 2F429F50AA088C00 PRP proof power = 8 PRP: Verified Proof certified good
2023-05-25	nordi	NF-PM1	B1=300000, B2=320708850
2023-03-22	nordi	NF-PM1	B1=300000
2016-11-21	bam	F-ECM	Factor: 9375690515712396562769 / (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