| 9205919 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 268 |
| Factored | |
| P-1 factors | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 3 / 280 |
Estimated T-Level: 20.1 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 2000-03-22 | C. Cooper / S. Boone | B5006F27E0BF8C32 | 4334431 | Windows,Prime95,v19,NT service,(aka WV5) | | Factored | 2003-04-03 | Rommel C. Zulueta | B5006F27E0BF8C32 | 7541330 | Windows,Prime95,v23,(aka WZ1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2021-07-17 | Jonathan Webb | 0ED18E10CC4400E7 | 1 | 6608158 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-06-17 | beep | NF | no factor TF: 69-70 | | 2021-07-17 | curtisc | CERT | Proof certified good | | 2021-07-17 | Jonathan Webb | C-PRP | M9205919/276293730077221427474993 : 0ED18E10CC4400E7 Proof Certified Good
Proof Power: 8
| | 2021-07-11 | Tha | F-PM1 | Factor: 276293730077221427474993 / B1=2000000, B2=162000000 | | 2019-10-04 | mnd9 | NF | no factor TF: 68-69 | | 2017-03-07 | snme2pm1 | NF | no factor TF: 67-68 | | 2016-04-23 | snme2pm1 | NF | no factor TF: 66-67 | | 2015-05-08 | VictordeHollander | NF | no factor TF: 65-66 | | 2013-09-08 | Nesowa | NF | no factor TF: 64-65 | | 2012-09-20 | Nesowa | NF-PM1 | B1=110000, B2=2035000, E=6 | | 2003-04-03 | delta_t | C-LL | B5006F27E0BF8C32 | | 2003-03-16 | delta_t | NF-PM1 | B1=45000, B2=506250 | | 2000-03-22 | curtisc | C-LL | B5006F27E0BF8C32 | | 1999-05-02 | -anonymous- | NF | no factor TF: 1-64 |
|
