1 698 943 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
4851037731064787955501007	25	82.0	2019-08-11 07:40:54

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Horng-Ming Chen	D76FC59D7304CF88	0
Verified (Factored)		Marc-Etienne Vargenau	D76FC59D7304CF88	0
Bad		Alessandro Vannini	946E4704BC0067CA	0
Bad		Bob Taylor	FEDEF8225DF68726	0
Verified (Factored)	2015-03-28	MadPoo	D76FC59D7304CF88	644199

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-08-11	nordi	A02C5263E7C1EBE5	1	309939	5	3
Verified	2019-08-11	ATH	A02C5263E7C1EBE5	1	888279	5	3

History

Date	User	Type	Result
2019-08-11	ATH	C-PRP	M1698943/4851037731064787955501007 : A02C5263E7C1EBE5 PRP: Verified PRP without proof (not generated)
2019-08-11	nordi	C-PRP	M1698943/4851037731064787955501007 : A02C5263E7C1EBE5 PRP: Verified PRP without proof (not generated)
2019-08-11	nordi	F-ECM	Factor: 4851037731064787955501007 / (ECM curve 15, B1=250000, B2=25000000, Sigma=2824948378519183)
2019-06-17	TJAOI	NF	no factor from 2^67 to 2^68
2017-09-01	TJAOI	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2015-10-11	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-28	MadPoo	C-LL	D76FC59D7304CF88
2015-02-11	VictordeHollander	NF-PM1	B1=10000000, B2=200000000, E=12
2015-02-02	Joss	NF-PM1	B1=309834
2015-01-30	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-30	VictordeHollander	NF	no factor from 2^63 to 2^64
2015-01-05	Joss	NF-PM1	B1=281668
2014-10-01	Joss	NF-PM1	B1=187779
2014-05-01	-Anonymous-	NF-PM1	B1=150000
2014-03-31	Joss	NF-PM1	B1=100000
2011-02-07	Carsten Kossendey	NF-PM1	B1=90000, B2=1485000, E=6
2011-01-27	Joss	NF-PM1	B1=50000
2010-09-26	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-25	Architects Cubed	NF	no factor from 2^60 to 2^61

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