2 150 399 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
21486011772131863048715839	26	84.2	2021-03-20 02:03:43

ECM

Digits	B1	Curves
25	50000	155 / 280

Estimated T-Level: 22.8 ⓘ

TF below 2^71 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Linton	F8D47D26A85D7667	0
Verified (Factored)	1999-03-15	Kaara	F8D47D26A85D7667	1798365
Verified (Factored)	2018-04-09	kkmrkkblmbrbk	F8D47D26A85D7667	1825328

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-03-20	PluckyPizzicato	E164249B891D14D1	1	475738	5	3

History

Date	User	Type	Result
2021-03-20	MrApina	CERT	PRP Certification Proof certified good
2021-03-20	PluckyPizzicato	C-PRP	M2150399/21486011772131863048715839 : E164249B891D14D1 PRP proof power = 7 PRP: Verified Proof certified good
2021-03-20	Sergey Nosov	F-ECM	Factor: 21486011772131863048715839 / (ECM curve 1, B1=50000, B2=5000000)
2019-07-01	Dylan Delgado	NF-PM1	B1=5000000, B2=500000000, E=12
2019-05-20	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-09	kkmrkkblmbrbk	C-LL	F8D47D26A85D7667
2017-12-04	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2017-11-17	Joss	NF-PM1	B1=648000, B2=10952819, 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=9957109, 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
2015-03-18	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
2009-01-06	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

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