3 927 967 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
9091975065918719605067663	25	82.9	2022-08-18 18:10:34

ECM

Digits	B1	Curves
25	50000	32 / 280

Estimated T-Level: 20.6 ⓘ

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

Status	Date	User	Residue	Shift
Bad	1998-02-24	Dug Elson	E789E68007446EC3	0
Verified (Factored)	1999-09-14	Steve Milton	CD0AB4940A8668E1	3631752
Verified (Factored)	1999-11-10	Brian O'Kelley	CD0AB4940A8668E1	920911

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-08-21	LordJulius	DECE6813DD11FFBC	1	104997	5	3

History

Date	User	Type	Result
2022-08-21	henhecta	CERT	PRP Certification Proof certified good
2022-08-21	LordJulius	C-PRP	M3927967/9091975065918719605067663 : DECE6813DD11FFBC PRP proof power = 7 PRP: Verified Proof certified good
2022-08-18	RIHATEC	F-ECM	Factor: 9091975065918719605067663 / (ECM curve 6, B1=50000, B2=5000000, Sigma=87778932953859)
2021-06-03	-Anonymous-	NF	no factor from 2^70 to 2^71
2021-05-24	axn	NF-PM1	B1=14000000, B2=700000000
2021-04-23	axn	NF	no factor from 2^69 to 2^70
2020-05-29	TJAOI	NF	no factor from 2^68 to 2^69
2019-01-07	Yxinity	NF	no factor from 2^67 to 2^68
2017-06-28	Joss	NF-PM1	B1=380160, B2=3801600, E=6
2016-12-07	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-04-24	Joss	NF-PM1	B1=190080, B2=3114004, E=6
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-13	ramgeis	NF	no factor from 2^65 to 2^66
2015-01-14	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-14	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-11-06	Joss	NF-PM1	B1=86340
2012-02-10	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-10-01	Squeeky_Squirrel	NF-PM1	B1=70000, B2=1172500, E=6
2011-03-01	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-07-11	Carsten Kossendey	NF-PM1	B1=20000, B2=285000
2009-01-01	Architects Cubed	NF	no factor from 2^60 to 2^61

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