| 219851 | Composite, with 1 known prime factor. 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 | 181 / 1566 |
Estimated T-Level: 30.6 ⓘ TF below 2^97 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) | 2017-09-22 | Oliver Kruse | D7F9850134E4276C | 1 | 0 | 1 | 3 | | Verified | No proof (small exponent) | 2017-10-12 | kkmrkkblmbrbk | D7F9850134E4276C | 1 | 21682 | 1 | 3 | | Verified | No proof (small exponent) | 2020-01-16 | _p95holder_ | AA95CEC932736766 | 1 | 64093 | 5 | 3 | | Verified | No proof (small exponent) | 2020-01-19 | ATH | AA95CEC932736766 | 1 | 104144 | 5 | 3 | | Verified | Certified Good | 2023-08-03 | USAFSS | AA95CEC932736766 | 1 | 121010 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2023-08-03 | ANONYMOUS | CERT | Proof certified good | | 2023-08-03 | USAFSS | C-PRP | M219851/1894675919 : AA95CEC932736766 Proof Certified Good
Proof Power: 5
| | 2022-03-05 | Oliver Kruse | NF-PM1 | B1=30000000, B2=10070832992220 | | 2021-06-04 | Oliver Kruse | NF-PM1 | B1=30000000, B2=3000000000 | | 2020-01-19 | ATH | C-PRP | M219851/1894675919 : AA95CEC932736766 | | 2020-01-16 | _p95holder_ | C-PRP | M219851/1894675919 : AA95CEC932736766 | | 2020-01-15 | Bommer | F-ECM | Factor: 1894675919 | | 2017-10-12 | kkmrkkblmbrbk | C-PRP | M219851/1894675919 : D7F9850134E4276C | | 2017-09-22 | Oliver Kruse | C-PRP | M219851/1894675919 : D7F9850134E4276C | | 2017-09-22 | Oliver Kruse | C-PRP | M219851/1894675919 : D7F9850134E4276C |
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