2 151 203 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
18447794322610003500751489	26	83.9	2021-02-15 09:12:16

ECM

Digits	B1	Curves
25	50000	141 / 280

Estimated T-Level: 22.5 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Ezram van Rijnberk	581A4438BC134340	0
Verified (Factored)		Wojciech Florek	581A4438BC134340	0
Verified (Factored)	2015-11-14	MadPoo	581A4438BC134340	441699

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-02-16	ViliamF	99B627432D0DE48F	1	1144593	5	3

History

Date	User	Type	Result
2021-02-16	Architects Cubed	CERT	PRP Certification Proof certified good
2021-02-16	ViliamF	C-PRP	M2151203/18447794322610003500751489 : 99B627432D0DE48F PRP proof power = 7 PRP: Verified Proof certified good
2021-02-15	mnd9	F-ECM	Factor: 18447794322610003500751489 / (ECM curve 1, B1=50000, B2=5000000, Sigma=5948850694579133)
2019-07-05	Dylan Delgado	NF-PM1	B1=5000000, B2=500000000, E=12
2019-05-20	TJAOI	NF	no factor from 2^67 to 2^68
2017-12-07	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2017-11-17	Joss	NF-PM1	B1=648000, B2=10951629, E=12
2017-10-04	Joss	NF-PM1	B1=540000, B2=5400000, E=6
2016-10-29	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-05-01	Joss	NF-PM1	B1=270000, B2=9956027, E=12
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-12-30	ramgeis	NF	no factor from 2^65 to 2^66
2015-11-14	MadPoo	C-LL	581A4438BC134340
2015-03-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-09-08	ramgeis	NF	no factor from 2^62 to 2^63
2011-01-22	James Heinrich	NF-PM1	B1=135000, B2=2666250, E=6
2011-01-13	Joss	NF-PM1	B1=50000
2010-12-30	Joss	NF-PM1	B1=30000
2010-11-03	Joss	NF-PM1	B1=20000
2009-01-07	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-04	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password