3 832 219 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷¹

TF target 2⁶⁴

TF below 2^80 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	10000000
B2 =	28028230230

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	77 / 640

Estimated T-Level: 25.6 ⓘ

Status	Date	User	Residue	Shift
Verified	1998-06-01	SUZUKI,Jiro	41D4C318743C367F	0
Verified	2000-05-17	Alan Frederick	41D4C318743C367F	3607620

History

Date	User	Type	Result
2024-08-12	TJAOI	NF	no factor from 2^70 to 2^71
2024-05-25	Joss	NF-PM1	B1=10000000, B2=28028230230
2024-05-24	Joss	NF-PM1	B1=10000000, B2=13986682710
2023-12-13	Joss	NF-PM1	B1=2326053, B2=2514892380
2022-05-12	DRobinsonPE	NF	no factor from 2^69 to 2^70
2021-01-24	axn	NF-PM1	B1=15000000, B2=750000000
2020-10-26	TJAOI	NF	no factor from 2^68 to 2^69
2018-09-17	TJAOI	NF	no factor from 2^67 to 2^68
2016-11-19	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-08-10	Joss	NF-PM1	B1=439084, B2=4390840, E=6
2016-08-06	Joss	NF-PM1	B1=439084, B2=2195420, E=6
2016-03-05	ramgeis	NF	no factor from 2^65 to 2^66
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-17	Joss	NF-PM1	B1=219542, B2=2195420, E=6
2015-01-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-14	Joss	NF-PM1	B1=86749
2012-04-20	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-10-30	Squeeky_Squirrel	NF-PM1	B1=70000, B2=1137500, E=6
2011-03-10	markr	NF	no factor from 2^61 to 2^62
2009-07-27	Carsten Kossendey	NF-PM1	B1=20000, B2=270000
2009-02-27	S485122	NF	no factor from 2^60 to 2^61

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