3 107 831 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
38103302307066921530351	23	75.0	2021-07-25 04:38:28

ECM

Digits	B1	Curves
25	50000	67 / 280

Estimated T-Level: 21.2 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Marc Liberatore	F317817898D5DC1E	0
Verified (Factored)	1999-06-26	Lorenzo Laschi	F317817898D5DC1E	1377204

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-07-26	kutens	E11C1FEE53C3BD81	1	1331995	5	3

History

Date	User	Type	Result
2022-02-20	Joss	NF-PM1	B1=1000000, B2=128282700
2021-07-26	David Hruska	CERT	PRP Certification Proof certified good
2021-07-26	kutens	C-PRP	M3107831/38103302307066921530351 : E11C1FEE53C3BD81 PRP proof power = 7 PRP: Verified Proof certified good
2021-07-25	kutens	F-ECM	Factor: 38103302307066921530351 / (ECM curve 3, B1=50000, B2=6750000, Sigma=5069109324735172)
2021-03-03	TJAOI	NF	no factor from 2^68 to 2^69
2019-02-04	TJAOI	NF	no factor from 2^67 to 2^68
2018-08-17	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2017-04-11	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-03-11	Joss	NF-PM1	B1=269568, B2=2695680, E=6
2017-02-15	Joss	NF-PM1	B1=224640, B2=2246400, E=6
2017-02-04	Joss	NF-PM1	B1=187200
2017-01-19	Joss	NF-PM1	B1=156000
2016-12-27	Joss	NF-PM1	B1=120000
2016-08-30	Joss	NF-PM1	B1=100000, B2=4250000, E=6
2015-06-11	Tha	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2011-11-22	markr	NF	no factor from 2^61 to 2^62
2011-08-22	Squeeky_Squirrel	NF-PM1	B1=100000, B2=2125000, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=180000
2009-02-12	Sturle Sunde	NF	no factor from 2^60 to 2^61

Username
Password