1 757 363 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
38936832758234031708991	23	75.0	2019-11-30 14:19:23

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Ken Kriesel	AF9865C98CF3A6A8	0
Verified (Factored)	1998-12-13	Bart P McCarthy	AF9865C98CF3A6A8	1442088
Verified (Factored)	2015-07-10	MadPoo	AF9865C98CF3A6A8	1305435

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-12-01	GAN	39C0191941745C3A	1	850946	5	3
Verified	2019-12-05	Chang Chia-Tche	39C0191941745C3A	1	1246727	5	3

History

Date	User	Type	Result
2019-12-05	Chang Chia-Tche	C-PRP	M1757363/38936832758234031708991 : 39C0191941745C3A PRP: Verified PRP without proof (not generated)
2019-12-01	GAN	C-PRP	M1757363/38936832758234031708991 : 39C0191941745C3A PRP: Verified PRP without proof (not generated)
2019-11-30	Keysarecool	F-ECM	Factor: 38936832758234031708991 / (ECM curve 2, B1=50000, B2=5000000, Sigma=1156927038468522)
2019-06-17	TJAOI	NF	no factor from 2^67 to 2^68
2018-10-19	Joss	NF-PM1	B1=1757363, B2=193309930, E=12
2018-08-13	Joss	NF-PM1	B1=1757363, B2=175736300, E=12
2018-05-21	TJAOI	NF	no factor from 2^66 to 2^67
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
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-09-06	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-10	MadPoo	C-LL	AF9865C98CF3A6A8
2015-05-14	snme2pm1	NF	no factor from 2^64 to 2^65
2015-05-14	snme2pm1	NF	no factor from 2^63 to 2^64
2015-04-27	mikr	NF-PM1	B1=2475400, B2=86660000, E=12
2014-09-17	-Anonymous-	NF-PM1	B1=173046
2014-05-09	Joss	NF-PM1	B1=136523
2014-04-08	Joss	NF-PM1	B1=100000
2011-02-07	Carsten Kossendey	NF-PM1	B1=95000, B2=1567500, E=6
2010-12-13	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-23	Architects Cubed	NF	no factor from 2^60 to 2^61

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