3 266 843 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
10309412567353888481	20	63.2	2009-07-08 05:49:47
41232777419223153847	20	65.2	2018-07-03 09:40:58

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)		Joel Armengaud	05F30FBFD788D59E	0
Verified (Factored)	1999-07-04	Dennis Dyer	05F30FBFD788D59E	2629591

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-11-03	Oliver Kruse	6FCC03E23459AB6E	1	1197235	5	3
Verified (Factored)	2017-12-14	kkmrkkblmbrbk	6FCC03E23459AB6E	1	1380970	5	3
Verified	2018-07-03	_p95holder_	6FCC03E23459AB6E	2	2703019	5	3

History

Date	User	Type	Result
2022-04-06	LordJulius	NF	no factor from 2^66 to 2^67
2022-04-06	LordJulius	NF	no factor from 2^64 to 2^65
2022-04-06	LordJulius	NF	no factor from 2^62 to 2^63
2022-04-06	LordJulius	NF	no factor from 2^1 to 2^62
2022-01-07	Joss	NF-PM1	B1=1000000, B2=116447100
2021-07-24	Joss	NF	no factor from 2^67 to 2^68
2021-01-15	Joss	NF-PM1	B1=326684, B2=3266843, E=6
2020-12-25	Joss	NF-PM1	B1=108894
2018-07-03	_p95holder_	C-PRP	M3266843/10309412567353888481/41232777419223153847 : 6FCC03E23459AB6E PRP: Verified PRP without proof (not generated)
2018-07-03	TJAOI	F	Factor: 41232777419223153847 / TF: 65-66
2017-12-14	kkmrkkblmbrbk	C-PRP	M3266843/10309412567353888481 : 6FCC03E23459AB6E PRP: Verified PRP without proof (not generated)
2017-11-03	Oliver Kruse	C-PRP	M3266843/10309412567353888481 : 6FCC03E23459AB6E PRP: Verified PRP without proof (not generated)
2009-07-08	Carsten Kossendey	F	Factor: 10309412567353888481
2009-04-02	S485122	NF	no factor from 2^60 to 2^61