2 870 587 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
712875134300218733983	21	69.3	2020-08-30 06:48:25

ECM

Digits	B1	Curves
25	50000	28 / 280

Estimated T-Level: 20.5 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Brian Beuning	F32F6F64401ED076	0
Verified (Factored)	1999-05-23	Florian Leeber	F32F6F64401ED076	2745955
Verified (Factored)	2018-09-21	kkmrkkblmbrbk	F32F6F64401ED076	1276762

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-08-30	M Miller	488CC9B80B262377	1	2161095	5	3

History

Date	User	Type	Result
2020-08-30	Ben Delo	CERT	PRP Certification Proof certified good
2020-08-30	M Miller	C-PRP	M2870587/712875134300218733983 : 488CC9B80B262377 PRP proof power = 7 PRP: Verified Proof certified good
2020-08-30	rextherunt	F-ECM	Factor: 712875134300218733983 / (ECM curve 4, B1=50000, B2=5000000)
2020-02-27	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-10-26	masser	NF-PM1	B1=2880000, B2=28800000, e=12
2019-01-09	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-21	kkmrkkblmbrbk	C-LL	F32F6F64401ED076
2017-12-27	Joss	NF-PM1	B1=634788, B2=6347880, E=6
2017-11-12	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-03-11	Joss	NF-PM1	B1=317394, B2=3173940, E=6
2017-01-10	Joss	NF-PM1	B1=220413
2016-12-18	Joss	NF-PM1	B1=183678
2016-09-21	Joss	NF-PM1	B1=153065, B2=3061300
2016-09-14	Joss	NF-PM1	B1=153065, B2=2783000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-18	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-01-24	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-02-05	markr	NF-PM1	B1=115000, B2=2530000, E=6
2011-01-21	Joss	NF-PM1	B1=50000
2011-01-03	Joss	NF-PM1	B1=30000
2010-12-22	Joss	NF-PM1	B1=20000
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=157500
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password