1 944 377 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
41573153181144324652321	23	75.1	2020-07-03 08:35:58

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)		Mischa Kenn	47F49983DE8324BC	0
Verified (Factored)	1999-02-07	Massimo Cappelli	47F49983DE8324BC	1125694
Verified (Factored)	2015-07-12	MadPoo	47F49983DE8324BC	1777550

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-07-03	M Miller	1C0736B16F8C3462	1	1629723	5	3
Verified	2020-07-09	Chang Chia-Tche	1C0736B16F8C3462	1	1217275	5	3

History

Date	User	Type	Result
2020-07-09	Chang Chia-Tche	C-PRP	M1944377/41573153181144324652321 : 1C0736B16F8C3462 PRP: Verified PRP without proof (not generated)
2020-07-03	M Miller	C-PRP	M1944377/41573153181144324652321 : 1C0736B16F8C3462 PRP: Verified PRP without proof (not generated)
2020-07-03	GAN	F-ECM	Factor: 41573153181144324652321 / (ECM curve 1, B1=50000, B2=5000000, Sigma=7171278186695729)
2019-05-11	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-17	Joss	NF-PM1	B1=1944377, B2=194437700, E=12
2018-02-28	Joss	NF-PM1	B1=1944377, B2=113248640, E=12
2018-02-11	Joss	NF-PM1	B1=1944377, B2=56624320, E=12
2018-02-04	Joss	NF-PM1	B1=1944377, B2=28312160, E=12
2017-10-20	TJAOI	NF	no factor from 2^66 to 2^67
2017-04-12	Joss	NF-PM1	B1=1415608, B2=14156080, E=12
2017-01-04	Joss	NF-PM1	B1=983062
2016-12-24	Joss	NF-PM1	B1=819219
2016-12-16	Joss	NF-PM1	B1=682683
2016-12-15	Joss	NF-PM1	B1=568903
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
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
2015-10-08	Bruno Victal	NF-PM1	B1=500000, B2=15000000, E=12
2015-09-06	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-12	MadPoo	C-LL	47F49983DE8324BC
2015-04-29	lycorn	NF	no factor from 2^64 to 2^65
2015-04-29	lycorn	NF	no factor from 2^63 to 2^64
2011-12-12	markr	NF-PM1	B1=275000, B2=6000000, E=12
2011-08-27	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-01-25	S485122	NF	no factor from 2^60 to 2^61

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