3 640 333 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
75280105019644427503116372295759257424213063	44	145.8	2020-08-20 16:52:57

ECM

Digits	B1	Curves
25	50000	12 / 280

Estimated T-Level: 20.2 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Helmut Zeisel	18A0C70E9409EF28	0
Verified (Factored)		Karl Mattle	18A0C70E9409EF28	0
Verified (Factored)		Cornelius Caesar	18A0C70E9409EF28	0
Verified (Factored)	2015-11-14	MadPoo	18A0C70E9409EF28	2049085

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-08-20	ATH	B0C7401A724E7B42	1	856235	5	3

P-1 factors

Date	Factor	B1	B2
2020-08-20	75280105019644427503116372295759257424213063	30000000	600000000

History

Date	User	Type	Result
2022-07-17	Joss	NF-PM1	B1=3640333, B2=3640659750
2022-03-19	Joss	NF-PM1	B1=1000000, B2=147585900
2020-08-20	Runtime Error	CERT	PRP Certification Proof certified good
2020-08-20	ATH	C-PRP	M3640333/75280105019644427503116372295759257424213063 : B0C7401A724E7B42 PRP proof power = 7 PRP: Verified Proof certified good
2020-08-20	axn	F-PM1	Factor: 75280105019644427503116372295759257424213063 / (P-1, B1=30000000, B2=600000000, E=12)
2018-08-06	TJAOI	NF	no factor from 2^67 to 2^68
2017-03-02	Joss	NF-PM1	B1=241228, B2=2412280, E=6
2017-02-04	Joss	NF-PM1	B1=201024
2017-01-29	Joss	NF-PM1	B1=167520
2016-12-27	Joss	NF-PM1	B1=129600
2016-12-26	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-06-08	Joss	NF-PM1	B1=108000, B2=3240000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-11-14	MadPoo	C-LL	18A0C70E9409EF28
2015-10-20	ramgeis	NF	no factor from 2^65 to 2^66
2015-01-22	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-22	VictordeHollander	NF	no factor from 2^63 to 2^64
2012-06-20	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2012-01-25	Squeeky_Squirrel	NF-PM1	B1=90000, B2=1620000, E=6
2011-05-22	markr	NF	no factor to 2^62
2009-07-06	Carsten Kossendey	NF-PM1	B1=20000, B2=245000
2009-03-11	S485122	NF	no factor from 2^60 to 2^61

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