3 394 487 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
368037528435456344101405085743	30	98.2	2021-07-15 01:56:36

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)		Lyle Ramshaw	F0D1D3C773D22A1A	0
Verified (Factored)	1999-09-14	Bruce Mitchell	F0D1D3C773D22A1A	2165762

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-07-15	SRJ2877	6CBC72F7CEB572A3	1	2179131	5	3

P-1 factors

Date	Factor	B1	B2
2021-07-15	368037528435456344101405085743	4000000	150000000

History

Date	User	Type	Result
2022-09-03	Joss	NF-PM1	B1=1357794, B2=223232100
2022-03-16	Joss	NF-PM1	B1=1000000, B2=127313550
2021-07-15	Grady_Beachum	CERT	PRP Certification Proof certified good
2021-07-15	SRJ2877	C-PRP	M3394487/368037528435456344101405085743 : 6CBC72F7CEB572A3 PRP proof power = 7 PRP: Verified Proof certified good
2021-07-15	mikr	F-PM1	Factor: 368037528435456344101405085743 / (P-1, B1=4000000, B2=150000000, E=12)
2021-06-21	TJAOI	NF	no factor from 2^68 to 2^69
2018-09-10	TJAOI	NF	no factor from 2^67 to 2^68
2017-03-12	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-03-10	Joss	NF-PM1	B1=638800, B2=11498400, E=6
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
2015-11-21	Joss	NF-PM1	B1=532334
2015-09-18	Joss	NF-PM1	B1=422183
2015-04-04	Gordon Spence	NF	no factor from 2^65 to 2^66
2015-02-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-13	Joss	NF-PM1	B1=97816
2014-07-04	Joss	NF-PM1	B1=78908
2012-11-15	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-10-24	USAFSS	NF-PM1	B1=60000, B2=945000, E=6
2011-08-20	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-08-15	Carsten Kossendey	NF-PM1	B1=15000, B2=206250
2009-03-25	S485122	NF	no factor from 2^60 to 2^61

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