599 371 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
18518711652028065879637871	26	83.9	2021-02-15 02:53:06

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	203 / 640

Estimated T-Level: 26.6 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	2B8E	0
Verified (Factored)		Glenn Leider	D01C9F847FD22B8E	0
Verified (Factored)		Klaus Kastens	D01C9F847FD22B8E	230517
Verified (Factored)	2015-04-11	MadPoo	D01C9F847FD22B8E	170180

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-02-15	riccardo uberti	F8522F2B6152CEAE	1	223462	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2021-02-15	carlds	CERT	PRP Certification Proof certified good
2021-02-15	riccardo uberti	C-PRP	M599371/18518711652028065879637871 : F8522F2B6152CEAE PRP proof power = 6 PRP: Verified Proof certified good
2021-02-15	GAN	F-ECM	Factor: 18518711652028065879637871 / (ECM curve 1, B1=250000, B2=25000000, Sigma=7676448738097988)
2020-01-30	Yxinity	NF	no factor from 2^66 to 2^67
2018-06-06	chuenkit	NF	no factor from 2^65 to 2^66
2017-10-29	BloodERazor	NF	no factor from 2^64 to 2^65
2016-02-23	Mark Rose	NF	no factor from 2^60 to 2^61
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-11-20	Sid & Andy	NF-PM1	B1=5993710, B2=179811300, E=12
2015-09-21	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-09-21	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-13	NR	NF	no factor from 2^61 to 2^62
2015-04-11	MadPoo	C-LL	D01C9F847FD22B8E
2013-10-25	David Campeau	NF-PM1	B1=2100000, B2=71400000, E=12
2013-04-09	Le Comte	NF-PM1	B1=2000000
2012-07-21	Joss	NF-PM1	B1=1198742
2012-03-08	Joss	NF-PM1	B1=806454
2011-08-28	Joss	NF-PM1	B1=645163
2011-06-12	Joss	NF-PM1	B1=400000

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