1 380 053 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

No factors below 2⁶⁸

TF target 2⁶⁰

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

P-1

B1 =	22800000
B2 =	117050109330

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 640

Estimated T-Level: 25.8 ⓘ

Status	Date	User	Residue	Shift
Verified		David Slowinski	18547	0
Verified		Tom Cage	0FDCEEC303A78547	0
Verified		Keith Allen	0FDCEEC303A78547	0
Verified	2015-11-13	MadPoo	0FDCEEC303A78547	852161

Status	Date	User	Residue	Shift	Type	Base
Verified	2020-11-06	Ethan O'Connor	1358B39F797B7555	1312352	1	3

History

Date	User	Type	Result
2023-09-27	Sid & Andy	NF-PM1	B1=22800000, B2=117050109330
2023-05-22	Joss	NF-PM1	B1=1380053, B2=11026057770
2023-02-28	Joss	NF-PM1	B1=1380053, B2=4739828730
2022-12-20	Joss	NF-PM1	B1=1380053, B2=1596762090
2020-11-08	GAN	CERT	PRP Certification CERT proof power = 6 Proof certified good
2020-11-06	Ethan O'Connor	C-PRP	1358B39F797B7555 PRP proof power = 6 PRP: Verified Proof certified good
2018-10-13	Joss	NF-PM1	B1=1380053, B2=151805830, E=12
2018-09-28	Joss	NF-PM1	B1=1380053, B2=138005300, E=12
2018-07-18	ramgeis	NF	no factor from 2^67 to 2^68
2018-04-23	TJAOI	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2015-11-13	MadPoo	C-LL	0FDCEEC303A78547
2015-09-23	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-17	snme2pm1	NF	no factor from 2^64 to 2^65
2015-04-17	snme2pm1	NF	no factor from 2^63 to 2^64
2014-09-16	mikr	NF-PM1	B1=3106900, B2=111849000, E=12
2014-05-12	Joss	NF-PM1	B1=177580
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-07-28	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-02-15	Sturle Sunde	NF	no factor from 2^60 to 2^61

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