3 272 837 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
611149791158221042853256497	27	89.0	2020-12-19 18:02:18

ECM

Digits	B1	Curves
25	50000	15 / 280

Estimated T-Level: 20.3 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-05-01	Ant¢nio B. Sousa	7ACF882DD9686ED1	0
Verified (Factored)	1998-05-01	António B. Sousa	7ACF882DD9686ED1	0
Verified (Factored)	1999-08-31	Jukka Santala	7ACF882DD9686ED1	230830

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-12-20	Maciej Kmieciak	14642C87F1A865AF	1	738833	5	3

P-1 factors

Date	Factor	B1	B2
2020-12-19	611149791158221042853256497	4000000	150000000

History

Date	User	Type	Result
2022-09-03	Joss	NF-PM1	B1=1240923, B2=223284600
2022-01-06	Joss	NF-PM1	B1=1240923, B2=116447100
2021-02-22	Joss	NF	no factor from 2^66 to 2^67
2021-02-21	Joss	NF	no factor from 2^65 to 2^66
2021-01-18	Joss	NF-PM1	B1=403400, B2=3272837, E=6
2020-12-20	Theo P.	CERT	PRP Certification Proof certified good
2020-12-20	Maciej Kmieciak	C-PRP	M3272837/611149791158221042853256497 : 14642C87F1A865AF PRP proof power = 7 PRP: Verified Proof certified good
2020-12-19	mikr	F-PM1	Factor: 611149791158221042853256497 / (P-1, B1=4000000, B2=150000000, E=12)
2018-12-10	TJAOI	NF	no factor from 2^67 to 2^68
2017-04-04	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-01-16	Joss	NF-PM1	B1=383400, B2=3834000, E=6
2015-06-28	Tha	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-10	Joss	NF-PM1	B1=99222
2014-06-26	-Anonymous-	NF-PM1	B1=79611
2012-12-30	dbaugh	NF	no factor from 2^62 to 2^63
2011-10-01	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-09-19	USAFSS	NF-PM1	B1=60000, B2=1065000, E=6
2009-07-08	Carsten Kossendey	NF-PM1	B1=15000, B2=191250
2009-04-03	S485122	NF	no factor from 2^60 to 2^61

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