| 4099 | Composite, with 6 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 244 |
| Assignments | |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 640 / 640 | | 35 | 1000000 | 1566 / 1566 | | 40 | 3000000 | 4588 / 4588 | | 45 | 11000000 | 9201 / 9201 | | 50 | 44000000 | 16550 / 16550 | | 55 | 110000000 | 20609 / 40830 |
Estimated T-Level: 52.5 ⓘ TF below 2^169 is very unlikely to find new factors due to ECM effort. |
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Factored | No proof (small exponent) | 2017-09-21 | Oliver Kruse | A495A08D3485C86E | 5 | 0 | 1 | 3 | | Factored | No proof (small exponent) | 2017-10-02 | kkmrkkblmbrbk | A495A08D3485C86E | 5 | 0 | 1 | 3 | | Factored | No proof (small exponent) | 2017-12-07 | ATH | A495A08D3485C86E | 5 | 2392 | 1 | 3 | | Factored | No proof (small exponent) | 2020-04-17 | Oliver Kruse | 81CFE712D7D461DC | 5 | 1096 | 5 | 3 | | Verified | No proof (small exponent) | 2020-10-02 | M Miller | 81CFE712D7D461DC | 6 | 3740 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-05-10 | masser | NF-PP1 | Start=73/53, B1=2600000000, B2=2597400000000 | | 2023-05-17 | -anonymous- | NF-PM1 | B1=79000000000, B2=797496463397964330 | | 2021-08-27 | Seth_Tr | NF-PM1 | B1=100000000 | | 2020-10-02 | M Miller | C-PRP | M4099/73783/262337/1816586623/201174447718334521/134184298503772840453580704960897/10721410046188167773445923767687200775977839318008207 : 81CFE712D7D461DC | | 2020-10-02 | Ryan Propper | F-ECM | Factor: 10721410046188167773445923767687200775977839318008207 | | 2020-04-17 | Oliver Kruse | C-PRP | M4099/73783/262337/1816586623/201174447718334521/134184298503772840453580704960897 : 81CFE712D7D461DC | | 2017-12-07 | ATH | C-PRP | M4099/73783/262337/1816586623/201174447718334521/134184298503772840453580704960897 : A495A08D3485C86E | | 2017-10-02 | kkmrkkblmbrbk | C-PRP | M4099/73783/262337/1816586623/201174447718334521/134184298503772840453580704960897 : A495A08D3485C86E | | 2017-09-21 | Oliver Kruse | C-PRP | M4099/known_factors : A495A08D3485C86E | | 2009-10-25 | Carsten Kossendey | F | Factor: 35161870422901178633 |
|
