1 897 517 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
701351298658359016687	21	69.2	2018-02-11 11:28:50

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	132 / 640

Estimated T-Level: 26.0 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Geoffrey Luders	6A97EF425FB13188	0
Verified (Factored)	1999-01-02	Stephen Wood	6A97EF425FB13188	218791
Verified (Factored)	2015-07-04	MadPoo	6A97EF425FB13188	652953

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-02-12	AdolfNor	566ECA82AF788E2B	1	1680003	5	3
Verified	2018-02-13	Daniil Tsarkov	566ECA82AF788E2B	1	345622	5	3

P-1 factors

Date	Factor	B1	B2
2018-02-11	701351298658359016687	2846275	56925500

History

Date	User	Type	Result
2018-02-13	Daniil Tsarkov	C-PRP	M1897517/701351298658359016687 : 566ECA82AF788E2B PRP: Verified PRP without proof (not generated)
2018-02-12	AdolfNor	C-PRP	M1897517/701351298658359016687 : 566ECA82AF788E2B PRP: Verified PRP without proof (not generated)
2018-02-11	Joss	F-PM1	Factor: 701351298658359016687 / (P-1, B1=2846275, B2=56925500, E=12)
2017-12-20	Joss	NF-PM1	B1=2846275, B2=28462750, E=12
2017-06-23	-Anonymous-	NF	no factor from 2^66 to 2^67
2017-04-18	Joss	NF-PM1	B1=1412299, B2=14122990, E=12
2017-01-21	Joss	NF-PM1	B1=1176916
2017-01-03	Joss	NF-PM1	B1=980764
2016-12-23	Joss	NF-PM1	B1=817304
2016-12-16	Joss	NF-PM1	B1=681087
2016-12-14	Joss	NF-PM1	B1=567573
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
2015-10-08	Bruno Victal	NF-PM1	B1=500000, B2=15000000, E=12
2015-09-13	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-04	MadPoo	C-LL	6A97EF425FB13188
2015-05-11	snme2pm1	NF	no factor from 2^64 to 2^65
2015-05-11	snme2pm1	NF	no factor from 2^63 to 2^64
2012-01-23	markr	NF-PM1	B1=275000, B2=6000000, E=12
2011-03-08	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-11	Architects Cubed	NF	no factor from 2^60 to 2^61

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