3 203 731 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
445097416181287474671631	24	78.6	2014-04-23 18:50:32

ECM

Digits	B1	Curves
25	50000	7 / 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)		Scott Kurowski	6C3499FB7150891C	0
Verified (Factored)	1999-12-30	Andy Kohler	6C3499FB7150891C	2270952

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-11-01	Oliver Kruse	7D467A46FD3528D1	1	3066688	5	3
Verified	2017-12-13	kkmrkkblmbrbk	7D467A46FD3528D1	1	2915330	5	3

History

Date	User	Type	Result
2022-09-07	Joss	NF-PM1	B1=1070372, B2=226749600
2022-04-02	LordJulius	NF	no factor from 2^66 to 2^67
2022-04-02	LordJulius	NF	no factor from 2^65 to 2^66
2022-04-02	LordJulius	NF	no factor from 2^64 to 2^65
2022-04-02	LordJulius	NF	no factor from 2^63 to 2^64
2022-01-24	Joss	NF-PM1	B1=1070372, B2=119912100
2021-05-10	Joss	NF	no factor from 2^67 to 2^68
2020-12-29	Joss	NF-PM1	B1=320373, B2=3203731, E=6
2017-12-13	kkmrkkblmbrbk	C-PRP	M3203731/445097416181287474671631 : 7D467A46FD3528D1 PRP: Verified PRP without proof (not generated)
2017-11-01	Oliver Kruse	C-PRP	M3203731/445097416181287474671631 : 7D467A46FD3528D1 PRP: Verified PRP without proof (not generated)
2014-04-23	bam	F-ECM	Factor: 445097416181287474671631
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-02-01	markr	NF	no factor from 2^61 to 2^62
2009-04-06	S485122	NF	no factor from 2^60 to 2^61