3 308 369 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
1310049017117656483049	22	70.2	2020-02-15 09:36:10

ECM

Digits	B1	Curves
25	50000	15 / 280

Estimated T-Level: 20.3 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Didier Couderc	FC265904EFE5CC3C	0
Verified (Factored)	1999-07-04	J. Nguyen	FC265904EFE5CC3C	3009012

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-02-15	Christoph Zenger	3F49EB7FC3F94459	1	701320	5	3
Verified	2020-02-15	mikr	3F49EB7FC3F94459	1	1585233	5	3
Verified	2020-02-16	xyuzyz	3F49EB7FC3F94459	1	359429	5	3

P-1 factors

Date	Factor	B1	B2
2020-02-15	1310049017117656483049	4000000	150000000

History

Date	User	Type	Result
2022-04-09	Joss	NF-PM1	B1=1000000, B2=115661700
2020-02-16	xyuzyz	C-PRP	M3308369/1310049017117656483049 : 3F49EB7FC3F94459 PRP: Verified PRP without proof (not generated)
2020-02-15	mikr	C-PRP	M3308369/1310049017117656483049 : 3F49EB7FC3F94459 PRP: Verified PRP without proof (not generated)
2020-02-15	Christoph Zenger	C-PRP	M3308369/1310049017117656483049 : 3F49EB7FC3F94459 PRP: Verified PRP without proof (not generated)
2020-02-15	mikr	F-PM1	Factor: 1310049017117656483049 / (P-1, B1=4000000, B2=150000000, E=12)
2018-12-03	TJAOI	NF	no factor from 2^67 to 2^68
2017-05-30	Joss	NF-PM1	B1=360000, B2=3600000, E=6
2017-02-24	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-29	ramgeis	NF	no factor from 2^65 to 2^66
2012-11-16	Squeeky_Squirrel	NF-PM1	B1=180000, B2=3285000, E=6
2011-10-26	Aaron Haviland	NF	no factor from 2^64 to 2^65
2011-10-26	Aaron Haviland	NF	no factor from 2^63 to 2^64
2011-10-26	Aaron Haviland	NF	no factor from 2^62 to 2^63
2011-09-30	USAFSS	NF-PM1	B1=55000, B2=880000, E=6
2011-09-06	markr	NF	no factor to 2^62
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=195000
2009-03-31	S485122	NF	no factor from 2^60 to 2^61