| 3561253 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 271 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 29 / 280 |
Estimated T-Level: 20.5 ⓘ TF below 2^63 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | INTERSHOP Communications | 6EDC926C8FF40245 | 0 | Windows,Prime95,v14,NT service,(aka WQ5) | | Factored | 2000-01-12 | Bob J. Taylor | 6EDC926C8FF40245 | 1575751 | Windows,Prime95,v19,(aka WV1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2021-07-17 | 123456789123456789 | 8842CA2EAA94179F | 1 | 3465693 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2023-10-15 | USAFSS | NF-PM1 | B1=384000, B2=235070550 | | 2022-05-19 | Joss | NF-PM1 | B1=100000, B2=130364850 | | 2022-03-01 | Joss | NF-PM1 | B1=100000 | | 2021-07-17 | Ben Delo | CERT | Proof certified good | | 2021-07-17 | 123456789123456789 | C-PRP | M3561253/1178303944981483505907497 : 8842CA2EAA94179F Proof Certified Good
Proof Power: 7
| | 2021-07-07 | kutens | F-ECM | Factor: 1178303944981483505907497 / ECM curve 7, B1=50000, B2=6800000, Montgomery Sigma=3861495507548066 | | 2021-03-17 | -anonymous- | NF | no factor TF: 70-71 | | 2021-03-17 | -anonymous- | NF | no factor TF: 69-70 | | 2020-12-23 | axn | NF | no factor TF: 68-69 | | 2019-01-21 | TJAOI | NF | no factor TF: 67-68 | | 2017-05-06 | Joss | NF-PM1 | B1=350000, B2=3500000, E=6 | | 2017-01-17 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-03-01 | ramgeis | NF | no factor TF: 65-66 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-12-31 | Squeeky_Squirrel | NF-PM1 | B1=175000, B2=4681250, E=6 | | 2015-01-30 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-01-30 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-11-19 | Joss | NF-PM1 | B1=96046 | | 2014-08-15 | -anonymous- | NF-PM1 | B1=78023 | | 2012-06-20 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-12-18 | Squeeky_Squirrel | NF-PM1 | B1=60000, B2=1005000, E=6 | | 2011-06-26 | markr | NF | no factor TF: 1-62 | | 2009-07-08 | Carsten Kossendey | NF-PM1 | B1=20000, B2=245000 | | 2009-03-16 | S485122 | NF | no factor TF: 60-61 | | 2000-01-12 | bjet | C-LL | 6EDC926C8FF40245 | | 1997-11-11 | Amperio | C-LL | 6EDC926C8FF40245 |
|
