| 9403 | 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 | 6882 / 16550 |
Estimated T-Level: 47.1 ⓘ TF below 2^151 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 | 804D94393B38FF71 | 2 | 0 | 1 | 3 | | Verified | No proof (small exponent) | 2017-10-12 | kkmrkkblmbrbk | 804D94393B38FF71 | 2 | 1818 | 1 | 3 | | Verified | No proof (small exponent) | 2020-04-17 | Oliver Kruse | 3E01341A6AA079DD | 2 | 5466 | 5 | 3 | | Verified | No proof (small exponent) | 2024-07-01 | kkmrkkblmbrbk | 3E01341A6AA079DD | 2 | 7365 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-04-05 | masser | NF-PP1 | Start=197/41, B1=1000000000, B2=999000000000 | | 2024-07-01 | kkmrkkblmbrbk | C-PRP | M9403/2576423/5735831 : 3E01341A6AA079DD | | 2023-07-03 | JacobZ | NF-PM1 | B1=62000000000, B2=254047854677867250 | | 2022-01-03 | ANONYMOUS | NF-PM1 | B1=100000000, B2=111748790953800 | | 2020-04-17 | Oliver Kruse | C-PRP | M9403/2576423/5735831 : 3E01341A6AA079DD | | 2017-10-12 | kkmrkkblmbrbk | C-PRP | M9403/2576423/5735831 : 804D94393B38FF71 | | 2017-09-21 | Oliver Kruse | C-PRP | M9403/2576423/5735831 : 804D94393B38FF71 | | 2017-09-21 | Oliver Kruse | C-PRP | M9403/2576423/5735831 : 804D94393B38FF71 |
|
