| 5507 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 244 |
| 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 | 11349 / 16550 |
Estimated T-Level: 48.4 ⓘ TF below 2^156 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 | 096D7F5E2F91BE76 | 2 | 0 | 1 | 3 | | Verified | No proof (small exponent) | 2017-10-12 | kkmrkkblmbrbk | 096D7F5E2F91BE76 | 2 | 3717 | 1 | 3 | | Verified | No proof (small exponent) | 2020-04-17 | Oliver Kruse | 183D22C77EAA06A0 | 2 | 1728 | 5 | 3 | | Verified | No proof (small exponent) | 2024-02-03 | Wentao Huang | 183D22C77EAA06A0 | 2 | 4874 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-05-11 | masser | NF-PP1 | Start=138/43, B1=2100000000, B2=2097900000000 | | 2024-02-03 | Wentao Huang | C-PRP | M5507/21675553/118415275877385658245796103 : 183D22C77EAA06A0 | | 2023-07-12 | -anonymous- | NF-PM1 | B1=45000000000, B2=181125525847266000 | | 2022-01-24 | Ethan O'Connor | NF-PM1 | B1=1300000000 | | 2021-12-16 | ANONYMOUS | NF-PM1 | B1=100000000 | | 2021-12-16 | Oliver Kruse | NF-PM1 | B1=1000000000, B2=1002106985940060 | | 2020-04-17 | Oliver Kruse | C-PRP | M5507/21675553/118415275877385658245796103 : 183D22C77EAA06A0 | | 2017-10-12 | kkmrkkblmbrbk | C-PRP | M5507/21675553/118415275877385658245796103 : 096D7F5E2F91BE76 | | 2017-09-21 | Oliver Kruse | C-PRP | M5507/21675553/118415275877385658245796103 : 096D7F5E2F91BE76 | | 2017-09-21 | Oliver Kruse | C-PRP | M5507/21675553/118415275877385658245796103 : 096D7F5E2F91BE76 |
|
