2 837 371 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
25692422242430089438423	23	74.4	2021-08-05 18:00:34

ECM

Digits	B1	Curves
25	50000	94 / 280

Estimated T-Level: 21.7 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		DR LOUIS F KNOEPP JR	92BB3702DEC8C57F	0
Verified (Factored)	1999-05-02	Kent Lee	92BB3702DEC8C57F	1804124
Verified (Factored)	2018-09-13	kkmrkkblmbrbk	92BB3702DEC8C57F	821687

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-08-05	SRJ2877	F4DC83B5275BC463	1	823180	5	3

History

Date	User	Type	Result
2021-08-06	Yoon	CERT	PRP Certification Proof certified good
2021-08-05	SRJ2877	C-PRP	M2837371/25692422242430089438423 : F4DC83B5275BC463 PRP proof power = 7 PRP: Verified Proof certified good
2021-08-05	nordi	F-ECM	Factor: 25692422242430089438423 / (ECM curve 1, B1=50000, B2=6750000, Sigma=8307648543630892)
2021-04-22	TJAOI	NF	no factor from 2^68 to 2^69
2020-02-02	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-11-06	masser	NF-PM1	B1=2840000, B2=28400000, E=12
2019-01-05	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-13	kkmrkkblmbrbk	C-LL	92BB3702DEC8C57F
2017-10-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-03-13	Joss	NF-PM1	B1=361303, B2=3613030, E=6
2016-12-14	Joss	NF-PM1	B1=301086
2016-11-03	Joss	NF-PM1	B1=250905
2016-10-27	Joss	NF-PM1	B1=174240
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-12-05	omylist	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
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2012-02-08	markr	NF	no factor from 2^61 to 2^62
2009-02-12	Sturle Sunde	NF	no factor from 2^60 to 2^61

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