| 2318917 | Composite, with 3 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 126 / 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 | 75C946458D4E9DC8 | 2 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-23 | storm5510 | 75C946458D4E9DC8 | 2 | 2092836 | 1 | 3 | | Verified | Certified Good | 2026-02-22 | kutens | 91C3CC0D2EB15B9F | 3 | 40326 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2026-02-22 | Eivind Nag | CERT | Proof certified good | | 2026-02-22 | kutens | C-PRP | M2318917/141477311683361/66381641016121927/147082867842519431432505361 : 91C3CC0D2EB15B9F Proof Certified Good
Proof Power: 7
| | 2026-02-13 | TJAOI | F-ECM | Factor: 147082867842519431432505361 / ECM curve 25, B1=250000, B2=254050335, Edwards Sigma=4620202371280084 | | 2021-04-10 | ViliamF | NF-PM1 | B1=5000000, B2=505000000 | | 2018-02-27 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-23 | storm5510 | C-PRP | M2318917/141477311683361/66381641016121927 : 75C946458D4E9DC8 | | 2017-10-11 | Oliver Kruse | C-PRP | M2318917/141477311683361/66381641016121927 : 75C946458D4E9DC8 | | 2015-02-20 | TJAOI | F | Factor: 66381641016121927 |
|
