3 431 903 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
961563081779003590633	21	69.7	2021-06-19 13:05:02

ECM

Digits	B1	Curves
25	50000	31 / 280

Estimated T-Level: 20.6 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-08-16	Gary Untermeyer	2DBF7C180637C568	0
Verified (Factored)	1999-11-10	Ivan Burns	2DBF7C180637C568	3376145

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-06-20	tottenhoff	2FA84FD815A144E2	1	3363302	5	3

History

Date	User	Type	Result
2022-04-10	Joss	NF-PM1	B1=1000000, B2=126668850
2022-04-09	Joss	NF-PM1	B1=1000000
2021-06-20	ManuelJC	CERT	PRP Certification Proof certified good
2021-06-20	tottenhoff	C-PRP	M3431903/961563081779003590633 : 2FA84FD815A144E2 PRP proof power = 7 PRP: Verified Proof certified good
2021-06-19	kutens	F-ECM	Factor: 961563081779003590633 / (ECM curve 2, B1=50000, B2=6800000, Sigma=5020829555839804)
2021-05-02	axn	NF-PM1	B1=14000000, B2=700000000
2021-01-01	axn	NF	no factor from 2^68 to 2^69
2018-10-08	TJAOI	NF	no factor from 2^67 to 2^68
2017-02-05	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-04-12	Gordon Spence	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
2014-09-15	HBendtz	NF-PM1	B1=500000, B2=10000000, E=12
2014-07-18	Joss	NF-PM1	B1=78702
2012-08-18	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-11-01	USAFSS	NF-PM1	B1=60000, B2=945000, E=6
2011-08-09	markr	NF	no factor from 2^61 to 2^62
2009-08-16	Carsten Kossendey	NF-PM1	B1=15000, B2=210000
2009-03-22	S485122	NF	no factor from 2^60 to 2^61

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