1 853 617 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

No factors below 2⁶⁸

TF target 2⁶¹

TF below 2^81 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	25000000
B2 =	69189473430

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 640

Estimated T-Level: 25.8 ⓘ

Status	Date	User	Residue	Shift
Verified		Michael Will	0C7BCBC2BC622083	0
Verified	1999-05-16	chemistry department	0C7BCBC2BC622083	431103
Verified	2015-07-06	MadPoo	0C7BCBC2BC622083	1671442

History

Date	User	Type	Result
2023-12-10	kurly	NF-PM1	B1=25000000, B2=69189473430
2023-06-10	Joss	NF-PM1	B1=1853617, B2=8777700750
2023-01-09	Joss	NF-PM1	B1=1853617, B2=1645373730
2022-10-31	masser	NF-PP1	Start=2/7, B1=800000, B2=25600000
2022-10-29	masser	NF-PP1	Start=6/5, B1=400000, B2=10800000
2022-10-27	masser	NF-PP1	Start=124/13, B1=200000, B2=4400000
2019-06-10	TJAOI	NF	no factor from 2^67 to 2^68
2018-10-25	Joss	NF-PM1	B1=1853617, B2=203897870, E=12
2018-08-14	Joss	NF-PM1	B1=1853617, B2=185361700, E=12
2018-06-11	TJAOI	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2015-09-09	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-19	mikr	NF-PM1	B1=2780000, B2=91760000, E=12
2015-07-06	MadPoo	C-LL	0C7BCBC2BC622083
2015-05-06	snme2pm1	NF	no factor from 2^64 to 2^65
2015-05-06	snme2pm1	NF	no factor from 2^63 to 2^64
2014-09-25	Joss	NF-PM1	B1=169252
2014-05-21	Joss	NF-PM1	B1=134626
2011-02-07	Carsten Kossendey	NF-PM1	B1=100000, B2=1700000, E=6
2011-01-21	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-13	Architects Cubed	NF	no factor from 2^60 to 2^61

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