| 2603819 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 171 / 280 |
Estimated T-Level: 23.1 ⓘ TF below 2^72 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Matt Clapp | 6321756636F0A06F | 0 | Windows,Prime95,v13,(aka WP1) | | Factored | 1999-05-23 | Rob Neave | 6321756636F0A06F | 2469550 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-15 | Oliver Kruse | C0AB14180763AF68 | 1 | 2108381 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-12-02 | storm5510 | C0AB14180763AF68 | 1 | 338970 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-12-02 | storm5510 | C-PRP | M2603819/2682914436074637617 : C0AB14180763AF68 | | 2017-10-15 | Oliver Kruse | C-PRP | M2603819/2682914436074637617 : C0AB14180763AF68 | | 2003-11-08 | Team Prime Rib | F-PM1 | Factor: 2682914436074637617 | | 2003-10-31 | -anonymous- | F-PM1 | Factor: 2682914436074637617 | | 1999-05-23 | -anonymous- | C-LL | 6321756636F0A06F | | 1999-04-02 | ANONYMOUS | NF | no factor TF: 1-59 |
|
