3 175 597 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
471678809765499419423	21	68.7	2021-06-13 02:48:30

ECM

Digits	B1	Curves
25	50000	82 / 280

Estimated T-Level: 21.5 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Gary Gisel	E743E1EFC7065517	0
Verified (Factored)	1999-05-30	Goede Schueler/Christoph Steinbeck	E743E1EFC7065517	2480147

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-06-14	riccardo uberti	547BBB92A3DFD88E	1	2659838	5	3

History

Date	User	Type	Result
2022-09-12	Joss	NF-PM1	B1=1000000, B2=241175550
2022-02-27	Joss	NF-PM1	B1=1000000, B2=134343300
2021-07-02	riccardo uberti	NF-PP1	Start=2/7, B1=2500000, B2=50000000
2021-06-14	curtisc	CERT	PRP Certification Proof certified good
2021-06-14	riccardo uberti	C-PRP	M3175597/471678809765499419423 : 547BBB92A3DFD88E PRP proof power = 7 PRP: Verified Proof certified good
2021-06-13	Sergey Nosov	F-ECM	Factor: 471678809765499419423 / (ECM curve 3, B1=50000, B2=5000000)
2021-02-15	Numberwang	NF-PM1	B1=166000, B2=5229000, E=6
2019-09-01	mikr	NF-PM1	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
2016-05-19	Joss	NF-PM1	B1=342897, B2=6172146, E=6
2015-09-28	Squeeky_Squirrel	NF-PM1	B1=155000, B2=3913750, 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
2014-09-29	Joss	NF-PM1	B1=100424
2014-06-01	Joss	NF-PM1	B1=80212
2013-01-03	dbaugh	NF	no factor from 2^62 to 2^63
2011-10-25	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-09-11	Squeeky_Squirrel	NF-PM1	B1=60000, B2=960000, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-10	S485122	NF	no factor from 2^60 to 2^61

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