| 2274409 | Composite, with 4 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 122 / 640 |
Estimated T-Level: 26.0 ⓘ TF below 2^81 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 | PRP without proof (not generated) | 2017-10-11 | Oliver Kruse | F541037FDDE2A6E1 | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-10-18 | Oliver Kruse | FF58E4E018E9928E | 4 | 709827 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-11-21 | storm5510 | FF58E4E018E9928E | 4 | 672490 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2017-11-21 | storm5510 | C-PRP | M2274409/432137711/1032581687/29435401279/243267926957332031 : FF58E4E018E9928E | | 2017-10-18 | Oliver Kruse | C-PRP | M2274409/432137711/1032581687/29435401279/243267926957332031 : FF58E4E018E9928E | | 2017-10-11 | Oliver Kruse | C-PRP | M2274409/known_factors : F541037FDDE2A6E1 | | 2016-05-01 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2015-07-14 | TJAOI | F | Factor: 243267926957332031 | | 2008-07-14 | George Woltman | F-ECM | Factor: 29435401279 | | 2008-07-14 | George Woltman | F-ECM | Factor: 1032581687 |
|
