| 2366207 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 123 / 640 |
Estimated T-Level: 26.0 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | John Lloyd | 3CDD869E9E164332 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-03-01 | Ethan Hansen | 3CDD869E9E164332 | 1429713 | Windows,Prime95,v17,NT service,(aka WT5) | | Factored | 2018-05-11 | kkmrkkblmbrbk | 3CDD869E9E164332 | 847489 | Windows 64-bit,Prime95,v29.4,build 5 |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2020-08-10 | storm5510 | B74B04A1AD2D7F08 | 1 | 305073 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2020-08-10 | Kriesel | CERT | Proof certified good | | 2020-08-10 | storm5510 | C-PRP | Proof Certified Good
Proof Power: 7
| | 2020-08-10 | mnd9 | F-ECM | Factor: 2220607579112129195017 / ECM curve 2, B1=50000, B2=5000000, Montgomery Sigma=1215558815407860 | | 2019-04-15 | TJAOI | NF | no factor TF: 67-68 | | 2018-05-11 | kkmrkkblmbrbk | C-LL | 3CDD869E9E164332 | | 2017-06-16 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-02-23 | Mark Rose | NF | no factor TF: 59-60 | | 2015-10-30 | ramgeis | NF | no factor TF: 65-66 | | 2015-09-12 | mikr | NF-PM1 | B1=3000000, B2=100000000, E=12 | | 2015-03-09 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-03-09 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-09-10 | Joss | NF-PM1 | B1=127125 | | 2013-01-23 | dbaugh | NF | no factor TF: 62-63 | | 2012-05-30 | Sebastian Hornbostel | NF | no factor TF: 61-62 | | 2010-12-30 | markr | NF-PM1 | B1=100000, B2=2025000, E=6 | | 2010-11-03 | Joss | NF-PM1 | B1=20000 | | 2009-01-15 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-09-21 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-03-01 | Dry Creek Photo | NF | no factor TF: 1-59 | | 1999-03-01 | Dry Creek Photo | C-LL | 3CDD869E9E164332 |
|
