3 152 167 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
770915387352048985727993959	27	89.3	2019-05-03 15:23:20

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)	1998-02-19	Robert Kulagowski	0FE061FEFAD834B8	0
Verified (Factored)	1999-06-06	MSR Cambridge	0FE061FEFAD834B8	845059

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-05-04	artorollo	D1AECFDD97DAD03A	1	754548	5	3
Verified	2019-05-05	kkmrkkblmbrbk	D1AECFDD97DAD03A	1	2481815	5	3

P-1 factors

Date	Factor	B1	B2
2019-05-03	770915387352048985727993959	3000000	0

History

Date	User	Type	Result
2022-09-03	Joss	NF-PM1	B1=1222824, B2=223284600
2022-01-06	Joss	NF-PM1	B1=1222824, B2=116447100
2021-01-16	Joss	NF-PM1	B1=315216, B2=3152167, E=6
2021-01-08	Joss	NF	no factor from 2^68 to 2^69
2019-05-05	kkmrkkblmbrbk	C-PRP	M3152167/770915387352048985727993959 : D1AECFDD97DAD03A PRP: Verified PRP without proof (not generated)
2019-05-04	artorollo	C-PRP	M3152167/770915387352048985727993959 : D1AECFDD97DAD03A PRP: Verified PRP without proof (not generated)
2019-05-03	mikr	F-PM1	Factor: 770915387352048985727993959 / (P-1, B1=3000000)
2019-02-04	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-22	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-11-24	HBendtz	NF-PM1	B1=500000, B2=12000000, e=12
2015-06-17	Tha	NF	no factor from 2^65 to 2^66
2015-02-11	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-11	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-09-04	Squeeky_Squirrel	NF-PM1	B1=110000, B2=2502500, E=6
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-11-04	markr	NF	no factor to 2^62
2011-09-07	Squeeky_Squirrel	NF-PM1	B1=55000, B2=948750, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=183750
2009-04-10	S485122	NF	no factor from 2^60 to 2^61