3 712 927 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
50973075838530719783420830513	29	95.4	2021-10-07 05:07:01

ECM

Digits	B1	Curves
25	50000	25 / 280

Estimated T-Level: 20.4 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1997-12-09	Rick Pali	B4838FFEC05C2508	0
Verified (Factored)	1999-08-22	Stephen Scott	B4838FFEC05C2508	3370352

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-10-13	RichD0	37A0BB5EE95CD819	1	1009072	5	3

History

Date	User	Type	Result
2022-05-24	Joss	NF-PM1	B1=100000, B2=130364850
2022-03-22	Joss	NF-PM1	B1=100000
2022-03-04	Joss	NF-PM1	B1=90000
2021-10-13	curtisc	CERT	PRP Certification Proof certified good
2021-10-13	RichD0	C-PRP	M3712927/50973075838530719783420830513 : 37A0BB5EE95CD819 PRP proof power = 7 PRP: Verified Proof certified good
2021-10-07	mnd9	F-ECM	Factor: 50973075838530719783420830513 / (ECM curve 6, B1=50000, B2=5000000, Sigma=5704346490608893)
2021-05-14	axn	NF-PM1	B1=14000000, B2=700000000
2021-03-06	axn	NF	no factor from 2^69 to 2^70
2020-12-14	axn	NF	no factor from 2^68 to 2^69
2019-02-04	TJAOI	NF	no factor from 2^67 to 2^68
2016-10-31	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	ramgeis	NF	no factor from 2^65 to 2^66
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-01-20	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-20	VictordeHollander	NF	no factor from 2^63 to 2^64
2012-12-09	Squeeky_Squirrel	NF-PM1	B1=245000, B2=7717500, E=12
2012-04-19	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-04-18	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-07-06	Carsten Kossendey	NF-PM1	B1=20000, B2=265000
2009-03-07	S485122	NF	no factor from 2^60 to 2^61

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