2 109 593 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁰

TF target 2⁶²

TF below 2^82 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	11000000
B2 =	29505730800

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	166 / 640

Estimated T-Level: 26.3 ⓘ

Status	Date	User	Residue	Shift
Verified		Charlie Dorian	38A439CC3B67DD6A	0
Verified	1999-01-29	David Phillips	38A439CC3B67DD6A	462656
Verified	2018-04-02	kkmrkkblmbrbk	38A439CC3B67DD6A	2076883

History

Date	User	Type	Result
2025-06-16	Joss	NF-PM1	B1=11000000, B2=29505730800
2024-02-29	Joss	NF-PM1	B1=11000000, B2=19445440560
2022-12-13	Architects Cubed	NF-PM1	B1=5000000, B2=9669482130
2022-12-04	Architects Cubed	NF	no factor from 2^69 to 2^70
2021-08-19	TJAOI	NF	no factor from 2^68 to 2^69
2019-05-20	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-02	kkmrkkblmbrbk	C-LL	38A439CC3B67DD6A
2017-07-19	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2017-06-09	Joss	NF-PM1	B1=447216, B2=4472160, E=6
2017-05-30	Joss	NF-PM1	B1=372680, B2=3726800, E=6
2016-11-08	Joss	NF-PM1	B1=223608
2016-10-05	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-07-18	Joss	NF-PM1	B1=186340, B2=6020000, E=12
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-12-27	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-15	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-15	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-09-05	ramgeis	NF	no factor from 2^62 to 2^63
2012-03-30	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-25	James Heinrich	NF-PM1	B1=140000, B2=3010000, E=6
2011-01-10	Joss	NF-PM1	B1=50000
2010-12-30	Joss	NF-PM1	B1=30000
2009-08-02	USAFSS	NF-PM1	B1=20000, B2=260000
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61

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