3 138 403 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
15606698516721199567982737	26	83.7	2021-06-23 14:27:05

ECM

Digits	B1	Curves
25	50000	57 / 280

Estimated T-Level: 21.0 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Ken Kriesel	BD82B3BB0601D114	0
Verified (Factored)	1999-05-30	Alex P.	BD82B3BB0601D114	1718592

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-06-24	tottenhoff	0AF82336569BE947	1	1066548	5	3

History

Date	User	Type	Result
2022-02-22	Joss	NF-PM1	B1=1000000, B2=128282700
2021-06-24	Chuck	CERT	PRP Certification Proof certified good
2021-06-24	tottenhoff	C-PRP	M3138403/15606698516721199567982737 : 0AF82336569BE947 PRP proof power = 7 PRP: Verified Proof certified good
2021-06-23	kutens	F-ECM	Factor: 15606698516721199567982737 / (ECM curve 1, B1=50000, B2=6750000, Sigma=2078156725228366)
2021-04-28	TJAOI	NF	no factor from 2^68 to 2^69
2019-02-07	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2019-01-07	TJAOI	NF	no factor from 2^67 to 2^68
2018-07-19	Joss	NF-PM1	B1=654000, B2=3270000
2018-07-19	Joss	NF-PM1	B1=654000, B2=2616000
2018-07-17	Joss	NF-PM1	B1=654000, B2=1308000
2017-04-17	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-01-10	Joss	NF-PM1	B1=132000
2016-11-07	Squeeky_Squirrel	NF-PM1	B1=195000, B2=5460000, E=12
2015-06-14	Tha	NF	no factor from 2^65 to 2^66
2015-02-11	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-11	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-09-01	Squeeky_Squirrel	NF-PM1	B1=110000, B2=2475000, E=6
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2011-11-10	Grant McCracken	NF	no factor from 2^61 to 2^62
2011-09-05	Squeeky_Squirrel	NF-PM1	B1=55000, B2=935000, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=183750
2009-04-10	S485122	NF	no factor from 2^60 to 2^61

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