3 850 463 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
3114883185556729224553	22	71.4	2016-06-18 22:09:20

ECM

Digits	B1	Curves
25	50000	9 / 280

Estimated T-Level: 20.2 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Dove	F8BDC90872E3B5C2	0
Verified (Factored)	1999-12-15	Neil Purcell	F8BDC90872E3B5C2	1182607

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	C4C4B7B3D75E8374	1	0	1	3
Verified	2017-12-19	Oliver Kruse	C4C4B7B3D75E8374	1	1785128	1	3

P-1 factors

Date	Factor	B1	B2
2016-06-18	3114883185556729224553	2000000	62000000

History

Date	User	Type	Result
2022-05-25	Joss	NF-PM1	B1=100000, B2=130364850
2022-03-22	Joss	NF-PM1	B1=100000
2022-03-05	Joss	NF-PM1	B1=90000
2017-12-19	Oliver Kruse	C-PRP	M3850463/3114883185556729224553 : C4C4B7B3D75E8374 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M3850463/3114883185556729224553 : C4C4B7B3D75E8374 PRP: Verified PRP without proof (not generated)
2016-06-18	mikr	F-PM1	Factor: 3114883185556729224553 / (P-1, B1=2000000, B2=62000000, E=12)
2016-02-29	Squeeky_Squirrel	NF-PM1	B1=180000, B2=5040000, E=6
2016-02-28	ramgeis	NF	no factor from 2^65 to 2^66
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-01-11	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-11	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-18	Joss	NF-PM1	B1=86669
2012-02-20	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-10-24	Squeeky_Squirrel	NF-PM1	B1=70000, B2=1137500, E=6
2011-03-03	markr	NF	no factor from 2^61 to 2^62
2009-07-27	Carsten Kossendey	NF-PM1	B1=20000, B2=270000
2009-02-25	S485122	NF	no factor from 2^60 to 2^61