3 426 277 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
854039218606267770649	21	69.5	2021-05-01 10:17:09

ECM

Digits	B1	Curves
25	50000	27 / 280

Estimated T-Level: 20.5 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Mark Hortman	D197FFF26C28A034	0
Verified (Factored)	1999-09-07	Brian Jacoby	D197FFF26C28A034	3333977

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-05-01	ATH	54652584B1A905F1	1	1424699	5	3

History

Date	User	Type	Result
2022-04-10	Joss	NF-PM1	B1=1000000, B2=126668850
2022-04-09	Joss	NF-PM1	B1=1000000
2021-05-01	nightfly	CERT	PRP Certification Proof certified good
2021-05-01	ATH	C-PRP	M3426277/854039218606267770649 : 54652584B1A905F1 PRP proof power = 7 PRP: Verified Proof certified good
2021-05-01	daveward2005	F-ECM	Factor: 854039218606267770649 / (ECM curve 5, B1=50000, B2=5000000, Sigma=3169253145599197)
2021-04-26	axn	NF-PM1	B1=14000000, B2=700000000
2020-12-30	axn	NF	no factor from 2^68 to 2^69
2018-11-12	TJAOI	NF	no factor from 2^67 to 2^68
2017-02-05	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-04-11	Gordon Spence	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-13	HBendtz	NF-PM1	B1=500000, B2=10000000, E=12
2014-07-18	Joss	NF-PM1	B1=78733
2012-08-18	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-10-30	USAFSS	NF-PM1	B1=60000, B2=945000, E=6
2011-07-24	Carsten Kossendey	NF	no factor from 2^61 to 2^62
2009-08-16	Carsten Kossendey	NF-PM1	B1=15000, B2=210000
2009-03-24	S485122	NF	no factor from 2^60 to 2^61

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