3 171 671 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
88129190547342319467793	23	76.2	2021-07-10 17:01:46

ECM

Digits	B1	Curves
25	50000	61 / 280

Estimated T-Level: 21.1 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Timo Aaltonen and friends	7325FA348F14DAE6	0
Verified (Factored)	1999-07-30	Team DoomNibbler	7325FA348F14DAE6	716271

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-07-11	SRJ2877	1395659672630008	1	1992951	5	3

History

Date	User	Type	Result
2022-09-12	Joss	NF-PM1	B1=1000000, B2=241175550
2022-02-22	Joss	NF-PM1	B1=1000000, B2=134343300
2021-07-11	Bruce A Metcalf	CERT	PRP Certification Proof certified good
2021-07-11	SRJ2877	C-PRP	M3171671/88129190547342319467793 : 1395659672630008 PRP proof power = 7 PRP: Verified Proof certified good
2021-07-10	daveward2005	F-ECM	Factor: 88129190547342319467793 / (ECM curve 4, B1=50000, B2=5000000, Sigma=7692236685495577)
2019-01-14	TJAOI	NF	no factor from 2^67 to 2^68
2019-01-05	King	NF-PM1	B1=2131475, B2=59681306, E=6
2017-04-25	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-04-22	Joss	NF-PM1	B1=384000, B2=11584623, E=6
2015-09-25	Squeeky_Squirrel	NF-PM1	B1=145000, B2=3625000, E=6
2015-06-17	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
2014-09-25	Joss	NF-PM1	B1=100474
2014-06-01	Joss	NF-PM1	B1=80237
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-10-27	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-09-10	Squeeky_Squirrel	NF-PM1	B1=60000, B2=960000, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-08	S485122	NF	no factor from 2^60 to 2^61

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