1 942 571 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
10106112330558593369	20	63.1	2013-12-23 12:37:27
3361039779086195635193	22	71.5	2021-07-13 01:57:13

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Ross Parker	817057769CD32D2E	0
Verified (Factored)	1998-12-21	Mikael Bylund	817057769CD32D2E	904401

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-05	Oliver Kruse	D0D59F4B6074F22F	1	0	1	3
Verified (Factored)	2017-11-11	kkmrkkblmbrbk	D0D59F4B6074F22F	1	1432324	1	3
Verified	2021-07-15	/r/counting	F46D35D3E527DD3C	2	1742964	5	3

History

Date	User	Type	Result
2021-07-15	Massimo Cappelli (ik5pwa)	CERT	PRP Certification Proof certified good
2021-07-15	/r/counting	C-PRP	M1942571/10106112330558593369/3361039779086195635193 : F46D35D3E527DD3C PRP proof power = 7 PRP: Verified Proof certified good
2021-07-13	MarkS	F-ECM	Factor: 3361039779086195635193 / (ECM curve 1, B1=50000, B2=5000000, Sigma=3493357796874297)
2017-11-11	kkmrkkblmbrbk	C-PRP	M1942571/10106112330558593369 : D0D59F4B6074F22F PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1942571/10106112330558593369 : D0D59F4B6074F22F PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2013-12-23	OS1	F-ECM	Factor: 10106112330558593369
2011-12-11	markr	NF-PM1	B1=275000, B2=6000000, E=12
2011-08-27	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-01-26	S485122	NF	no factor from 2^60 to 2^61