865 357 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
2087908229216622558926919469488909297337	40	130.6	2022-10-17 10:56:46

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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)		David Slowinski	1E07	0
Verified (Factored)		Edward M. Markowski	1CC691CC98D99E07	0
Verified (Factored)	2002-01-28	Marc Getty / Phil Fizur	1CC691CC98D99E07	181758
Verified (Factored)	2015-04-11	MadPoo	1CC691CC98D99E07	297240

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-10-17	Kevin_9611	7AEA53C1DE8CFBBF	1	40271	5	3

P-1 factors

Date	Factor	B1	B2
2022-10-17	2087908229216622558926919469488909297337	15000000	1101081888270

History

Date	User	Type	Result
2022-10-17	Ben Delo	CERT	PRP Certification Proof certified good
2022-10-17	Kevin_9611	C-PRP	M865357/2087908229216622558926919469488909297337 : 7AEA53C1DE8CFBBF PRP proof power = 6 PRP: Verified Proof certified good
2022-10-17	lycorn	F-PM1	Factor: 2087908229216622558926919469488909297337 / (P-1, B1=15000000, B2=1101081888270)
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^59
2022-02-22	Gordon Spence	NF	no factor from 2^67 to 2^68
2019-03-25	lycorn	NF	no factor from 2^66 to 2^67
2018-05-18	BloodERazor	NF	no factor from 2^65 to 2^66
2016-02-13	lycorn	NF	no factor from 2^64 to 2^65
2015-11-28	Sid & Andy	NF-PM1	B1=8653570, B2=259607100, E=12
2015-10-07	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-10-07	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-04-11	MadPoo	C-LL	1CC691CC98D99E07
2015-02-06	TJAOI	NF	no factor from 2^61 to 2^62
2013-11-04	David Campeau	NF-PM1	B1=2025000, B2=72900000, E=12
2012-10-25	Joss	NF-PM1	B1=1949784
2012-08-29	Joss	NF-PM1	B1=1730714
2012-03-29	Joss	NF-PM1	B1=1202219
2012-01-22	Joss	NF-PM1	B1=801479
2011-08-31	Joss	NF-PM1	B1=400739
2011-06-24	Joss	NF-PM1	B1=400000
2011-02-20	Joss	NF-PM1	B1=200000
2010-05-23	Architects Cubed	NF	no factor from 2^60 to 2^61

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