9 700 357 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
9976742434991004584938822903959123959	37	122.9	2019-11-19 00:04:33

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	2000-10-22	Mason Guy	754A5A132E9A7170	9329352
Verified (Factored)	2003-12-02	Jarod	754A5A132E9A7170	4169902

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-11-19	mnd9	2F0520D3F786A2A9	1	6707231	5	3
Verified	2020-12-24	kutens	2F0520D3F786A2A9	1	6008489	5	3

P-1 factors

Date	Factor	B1	B2
2019-11-19	9976742434991004584938822903959123959	2500000	2500000

History

Date	User	Type	Result
2020-12-24	Ben Delo	CERT	PRP Certification Proof certified good
2020-12-24	kutens	C-PRP	M9700357/9976742434991004584938822903959123959 : 2F0520D3F786A2A9 PRP proof power = 8 PRP: Verified Proof certified good
2019-11-19	mnd9	C-PRP	M9700357/9976742434991004584938822903959123959 : 2F0520D3F786A2A9 PRP: Verified PRP without proof (not generated)
2019-11-19	Dylan Delgado	F-PM1	Factor: 9976742434991004584938822903959123959 / (P-1, B1=2500000, B2=2500000, e=12, n=512K CUDAPm1 v0.22)
2016-10-15	snme2pm1	NF	no factor from 2^67 to 2^68
2016-10-15	snme2pm1	NF	no factor from 2^66 to 2^67
2015-04-22	VictordeHollander	NF	no factor from 2^65 to 2^66
2013-08-25	Nesowa	NF	no factor from 2^64 to 2^65
2011-07-16	James Heinrich	NF-PM1	B1=180000, B2=4050000, E=6