2 385 023 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

No factors below 2⁷⁰

TF target 2⁶³

TF below 2^76 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	12200000
B2 =	39122153070

ECM

Digits	B1	Curves
25	50000	238 / 280

Estimated T-Level: 24.3 ⓘ

Status	Date	User	Residue	Shift
Verified		Dennis Kluk	44EED5A74CA4715A	0
Verified	1999-03-26	Bryan Fullerton	44EED5A74CA4715A	1399533
Verified	2018-05-15	kkmrkkblmbrbk	44EED5A74CA4715A	389920

History

Date	User	Type	Result
2024-03-29	TJAOI	NF	no factor from 2^69 to 2^70
2023-07-11	Sid & Andy	NF-PM1	B1=12200000, B2=39122153070
2023-03-15	Joss	NF-PM1	B1=1000000, B2=1647746100
2023-01-25	Joss	NF-PM1	B1=1000000, B2=571651080
2021-07-05	TJAOI	NF	no factor from 2^68 to 2^69
2019-03-18	TJAOI	NF	no factor from 2^67 to 2^68
2018-05-15	kkmrkkblmbrbk	C-LL	44EED5A74CA4715A
2017-06-21	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2015-11-01	ramgeis	NF	no factor from 2^65 to 2^66
2015-10-30	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2015-03-09	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-09	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-09-15	-Anonymous-	NF-PM1	B1=126911
2013-12-04	Jerry Hallett	NF	no factor from 2^62 to 2^63
2012-06-01	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2010-12-26	markr	NF-PM1	B1=100000, B2=2075000, E=6
2010-11-15	Joss	NF-PM1	B1=20000
2010-11-08	Joss	NF-PM1	B1=15000
2009-01-15	Sturle Sunde	NF	no factor from 2^60 to 2^61

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