3 941 837 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
132580830250234349427886609351	30	96.7	2023-02-03 00:48:47

ECM

Digits	B1	Curves
25	50000	43 / 280

Estimated T-Level: 20.8 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-07-05	Takahiro Shakushi	9076C55134CBEF40	0
Verified (Factored)	1999-11-10	Earl Borah	9076C55134CBEF40	1021572

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-02-03	LordJulius	9F2E6254420E80D0	1	338784	5	3

P-1 factors

Date	Factor	B1	B2
2023-02-03	132580830250234349427886609351	1000000	1141920780

History

Date	User	Type	Result
2023-02-03	James Heinrich	CERT	PRP Certification Proof certified good
2023-02-03	LordJulius	C-PRP	M3941837/132580830250234349427886609351 : 9F2E6254420E80D0 PRP proof power = 7 PRP: Verified Proof certified good
2023-02-03	Joss	F-PM1	Factor: 132580830250234349427886609351 / (P-1, B1=1000000, B2=1141920780)
2023-02-01	Denial140	NF-PM1	B1=20996011
2022-10-30	Joss	NF-PM1	B1=1000000, B2=119860650
2022-05-13	Joss	NF-PM1	B1=500000, B2=119860650
2021-06-03	-Anonymous-	NF	no factor from 2^70 to 2^71
2021-04-29	axn	NF	no factor from 2^69 to 2^70
2020-08-11	TJAOI	NF	no factor from 2^68 to 2^69
2018-11-05	TJAOI	NF	no factor from 2^67 to 2^68
2017-07-10	Joss	NF-PM1	B1=380160, B2=3801600, E=6
2016-12-11	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-05-02	Joss	NF-PM1	B1=190080, B2=3421440
2016-04-29	Joss	NF-PM1	B1=190080, B2=2951876, 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
2014-11-12	Joss	NF-PM1	B1=86283
2012-02-20	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-09-26	Squeeky_Squirrel	NF-PM1	B1=70000, B2=1190000, E=6
2011-03-15	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-08-01	Carsten Kossendey	NF-PM1	B1=20000, B2=285000
2009-01-14	Architects Cubed	NF	no factor from 2^60 to 2^61

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