3 935 651 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
2806978996887278965751	22	71.2	2022-02-09 01:27:21

ECM

Digits	B1	Curves
25	50000	19 / 280

Estimated T-Level: 20.3 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-01-13	Jacques Mattheij	7CADEF81E4F0D251	0
Verified (Factored)	2000-08-31	Laszlo Megyeri	7CADEF81E4F0D251	3253749

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-02-15	Ember_Edison	6F4CD83000E35FFC	1	2250982	5	3

History

Date	User	Type	Result
2022-03-16	Joss	NF-PM1	B1=1000000, B2=129198300
2022-02-15	Patrik Johansson	CERT	PRP Certification Proof certified good
2022-02-15	Ember_Edison	C-PRP	M3935651/2806978996887278965751 : 6F4CD83000E35FFC PRP proof power = 7 PRP: Verified Proof certified good
2022-02-09	Samuel Schmidt	F-ECM	Factor: 2806978996887278965751 / (ECM curve 7, B1=50000, B2=5800000, Sigma=5088237950422790)
2021-11-20	Aaron Haviland	NF-PM1	B1=500000, B2=15000000, e=12
2021-06-03	-Anonymous-	NF	no factor from 2^70 to 2^71
2021-04-26	axn	NF	no factor from 2^69 to 2^70
2020-11-24	Carlos Pinho	NF-PM1	B1=173000, B2=4789000, E=6
2020-05-29	TJAOI	NF	no factor from 2^68 to 2^69
2019-01-07	Yxinity	NF	no factor from 2^67 to 2^68
2017-02-18	Joss	NF-PM1	B1=231552, B2=2315520, E=6
2017-02-04	Joss	NF-PM1	B1=192960
2017-01-29	Joss	NF-PM1	B1=160800
2016-12-26	Joss	NF-PM1	B1=114000
2016-12-08	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-07-16	Joss	NF-PM1	B1=95000, B2=4037500, E=6
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-13	ramgeis	NF	no factor from 2^65 to 2^66
2015-01-14	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-14	VictordeHollander	NF	no factor from 2^63 to 2^64
2012-02-10	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-03-08	Grant McCracken	NF	no factor from 2^61 to 2^62
2010-09-11	markr	NF-PM1	B1=95000, B2=2018750, E=6
2008-12-26	Architects Cubed	NF	no factor from 2^60 to 2^61

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