2 175 479 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
116400188830953249379227634162197809279	39	126.5	2023-10-09 22:47:49

ECM

Digits	B1	Curves
25	50000	207 / 280

Estimated T-Level: 23.7 ⓘ

TF below 2^74 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jeff Woods	B7A376C1BE7CAD62	0
Verified (Factored)	1999-02-07	Darryl W. Stout	B7A376C1BE7CAD62	1157646
Verified (Factored)	2018-04-12	kkmrkkblmbrbk	B7A376C1BE7CAD62	1064011

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-10-11	Naegi Makoto	EF4FA3204DDEDC51	1	471743	5	3

P-1 factors

Date	Factor	B1	B2
2023-10-09	116400188830953249379227634162197809279	15800000	41225419950

History

Date	User	Type	Result
2023-10-11	curtisc	CERT	PRP Certification Proof certified good
2023-10-11	Naegi Makoto	C-PRP	M2175479/116400188830953249379227634162197809279 : EF4FA3204DDEDC51 PRP proof power = 7 PRP: Verified Proof certified good
2023-10-09	Sid & Andy	F-PM1	Factor: 116400188830953249379227634162197809279 / (P-1, B1=15800000, B2=41225419950)
2023-09-29	Joss	NF-PM1	B1=1000000, B2=10499190240
2023-06-04	Joss	NF-PM1	B1=1000000, B2=5031549600
2023-01-31	Joss	NF-PM1	B1=1000000, B2=930848100
2021-07-15	TJAOI	NF	no factor from 2^68 to 2^69
2019-11-18	mikr	NF-PM1	B1=5000000, B2=200000000, E=12
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-12	kkmrkkblmbrbk	C-LL	B7A376C1BE7CAD62
2016-11-17	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-01-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-12-22	HBendtz	NF-PM1	B1=700000, B2=21000000, e=12
2015-03-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-05	Joss	NF-PM1	B1=149008
2014-06-13	Joss	NF-PM1	B1=119504
2013-09-09	ramgeis	NF	no factor from 2^62 to 2^63
2011-01-15	markr	NF-PM1	B1=90000, B2=1620000, E=6
2010-11-07	Joss	NF-PM1	B1=30000
2010-11-05	Joss	NF-PM1	B1=15000
2009-01-06	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-04	Sturle Sunde	NF	no factor from 2^60 to 2^61

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