3 177 739 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
237388211771001010575712279	27	87.6	2019-09-08 18:05:05

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)		Robert Friberg	770FE8019CFE00A8	0
Verified (Factored)	1999-07-26	Jeff Eaton	770FE8019CFE00A8	1020242

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-09-09	mnd9	3CEBFA54EDF1CD7E	1	2546313	5	3
Verified	2019-09-10	Justine V.	3CEBFA54EDF1CD7E	1	842446	5	3

P-1 factors

Date	Factor	B1	B2
2019-09-08	237388211771001010575712279	3000000	120000000

History

Date	User	Type	Result
2022-09-03	Joss	NF-PM1	B1=1206302, B2=223284600
2022-01-06	Joss	NF-PM1	B1=1206302, B2=116447100
2021-02-18	Joss	NF	no factor from 2^66 to 2^67
2021-01-03	Joss	NF	no factor from 2^65 to 2^66
2020-09-02	Joss	NF-PM1	B1=529643, B2=6355478, E=6
2019-09-10	Justine V.	C-PRP	M3177739/237388211771001010575712279 : 3CEBFA54EDF1CD7E PRP: Verified PRP without proof (not generated)
2019-09-09	mnd9	C-PRP	M3177739/237388211771001010575712279 : 3CEBFA54EDF1CD7E PRP: Verified PRP without proof (not generated)
2019-09-08	mikr	F-PM1	Factor: 237388211771001010575712279 / (P-1, B1=3000000, B2=120000000, E=12)
2019-01-07	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-25	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-12-02	HBendtz	NF-PM1	B1=500000, B2=12000000, e=12
2015-11-30	Joss	NF-PM1	B1=509643
2015-11-28	Joss	NF-PM1	B1=463312
2015-06-18	Tha	NF	no factor from 2^65 to 2^66
2015-02-15	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-15	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-29	Joss	NF-PM1	B1=100396
2014-06-01	Joss	NF-PM1	B1=80198
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-10-28	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-09-11	Squeeky_Squirrel	NF-PM1	B1=60000, B2=975000, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-07	S485122	NF	no factor from 2^60 to 2^61

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