1 700 807 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
779425659153589563869367007	27	89.3	2019-12-25 18:05:02

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	113 / 640

Estimated T-Level: 25.9 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Joel Armengaud	370E79984951B2E9	0
Verified (Factored)	1999-04-13	Richard Bland	370E79984951B2E9	676073
Verified (Factored)	2015-06-28	MadPoo	370E79984951B2E9	318674

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-12-26	Niels_Mache_Nextcloud	ED03C82F90020FCD	1	1340015	5	3
Verified	2019-12-28	arnaud	ED03C82F90020FCD	1	494126	5	3

History

Date	User	Type	Result
2019-12-28	arnaud	C-PRP	M1700807/779425659153589563869367007 : ED03C82F90020FCD PRP: Verified PRP without proof (not generated)
2019-12-26	Niels_Mache_Nextcloud	C-PRP	M1700807/779425659153589563869367007 : ED03C82F90020FCD PRP: Verified PRP without proof (not generated)
2019-12-25	mnd9	F-ECM	Factor: 779425659153589563869367007 / (ECM curve 7, B1=250000, B2=25000000, Sigma=7135786250356608)
2019-08-06	TJAOI	NF	no factor from 2^67 to 2^68
2018-06-18	TJAOI	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-08-30	ramgeis	NF	no factor from 2^65 to 2^66
2015-06-28	MadPoo	C-LL	370E79984951B2E9
2015-02-18	VictordeHollander	NF-PM1	B1=10000000, B2=200000000, E=12
2015-02-16	Joss	NF-PM1	B1=374815
2015-02-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2015-02-02	Joss	NF-PM1	B1=309765
2015-01-07	Joss	NF-PM1	B1=281605
2014-10-01	Joss	NF-PM1	B1=187737
2014-05-03	Joss	NF-PM1	B1=150000
2014-03-31	Joss	NF-PM1	B1=100000
2011-02-07	Carsten Kossendey	NF-PM1	B1=90000, B2=1507500, E=6
2011-01-27	Joss	NF-PM1	B1=50000
2010-10-04	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-21	Architects Cubed	NF	no factor from 2^60 to 2^61

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