| 3761 | Composite, with 3 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 | 11155 / 40830 |
Estimated T-Level: 51.4 ⓘ TF below 2^166 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 |
|---|
| Verified | No proof (small exponent) | 2017-09-21 | Oliver Kruse | 39DC95BB60DEB496 | 3 | 0 | 1 | 3 | | Verified | No proof (small exponent) | 2017-10-12 | kkmrkkblmbrbk | 39DC95BB60DEB496 | 3 | 230 | 1 | 3 | | Verified | No proof (small exponent) | 2020-04-17 | Oliver Kruse | 23CEA6131CA09688 | 3 | 1074 | 5 | 3 | | Verified | No proof (small exponent) | 2024-02-03 | Wentao Huang | 23CEA6131CA09688 | 3 | 102 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-05-05 | masser | NF-PP1 | Start=165/59, B1=2600000000, B2=2597400000000 | | 2024-06-20 | masser | NF-PM1 | B1=77000000000, B2=37089566618504400 | | 2024-02-03 | Wentao Huang | C-PRP | M3761/55655279/1264967782151/1878874879423 : 23CEA6131CA09688 | | 2021-09-09 | Jinyuan Wang | NF-PM1 | B1=1300000000, B2=13000000000 | | 2020-04-17 | Oliver Kruse | C-PRP | M3761/55655279/1264967782151/1878874879423 : 23CEA6131CA09688 | | 2017-10-12 | kkmrkkblmbrbk | C-PRP | M3761/55655279/1264967782151/1878874879423 : 39DC95BB60DEB496 | | 2017-09-21 | Oliver Kruse | C-PRP | M3761/55655279/1264967782151/1878874879423 : 39DC95BB60DEB496 | | 2017-09-21 | Oliver Kruse | C-PRP | M3761/55655279/1264967782151/1878874879423 : 39DC95BB60DEB496 | | 2009-10-25 | Carsten Kossendey | F | Factor: 70402134841625125129 |
|
