2 114 977 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
153714765888080126813811547583	30	97.0	2020-07-06 03:55:18

ECM

Digits	B1	Curves
25	50000	97 / 280

Estimated T-Level: 21.7 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		James Welsh	6C6C716CA59DD062	0
Verified (Factored)	1997-11-29	Luke Welsh	6C6C716CA59DD062	0
Bad	1999-07-30	william Elletson	CEBC9AF174778F9F	322426
Verified (Factored)	1999-09-07	Chi-leung Chan	6C6C716CA59DD062	1359681

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-07-07	pew	37BA7E5B2039861A	1	203105	5	3
Verified	2020-07-07	Alexander Pavlicin	37BA7E5B2039861A	1	935	5	3
Verified	2020-07-07	marssystems	37BA7E5B2039861A	1	319893	5	3

History

Date	User	Type	Result
2020-07-07	marssystems	C-PRP	M2114977/153714765888080126813811547583 : 37BA7E5B2039861A PRP: Verified PRP without proof (not generated)
2020-07-07	Alexander Pavlicin	C-PRP	M2114977/153714765888080126813811547583 : 37BA7E5B2039861A PRP: Verified PRP without proof (not generated)
2020-07-07	pew	C-PRP	M2114977/153714765888080126813811547583 : 37BA7E5B2039861A PRP: Verified PRP without proof (not generated)
2020-07-06	mnd9	F-ECM	Factor: 153714765888080126813811547583 / (ECM curve 1, B1=50000, B2=5000000, Sigma=900506774758078)
2019-05-13	TJAOI	NF	no factor from 2^67 to 2^68
2017-08-03	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2017-06-28	Joss	NF-PM1	B1=447216, B2=4472160, E=6
2017-06-09	Joss	NF-PM1	B1=372680, B2=3726800, E=6
2016-11-09	Joss	NF-PM1	B1=223608
2016-10-15	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-07-22	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
2012-04-01	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-28	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
2009-01-04	Sturle Sunde	NF	no factor from 2^60 to 2^61

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