| 2273911 | 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 | 153 / 640 |
Estimated T-Level: 26.2 ⓘ TF below 2^82 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 | D33EAFE77EFD2C0D | 2 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-21 | storm5510 | D33EAFE77EFD2C0D | 2 | 1317351 | 1 | 3 | | Verified | Certified Good | 2023-07-13 | Funky Waddle | 97E565DBC093130B | 3 | 1885119 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2023-07-13 | curtisc | CERT | Proof certified good | | 2023-07-13 | Funky Waddle | C-PRP | M2273911/404756159/745842809/3262159008932278190639 : 97E565DBC093130B Proof Certified Good
Proof Power: 7
| | 2023-07-07 | SmithMichae2 | F-ECM | Factor: 3262159008932278190639 / ECM curve 27, B1=50000, B2=7050000, Montgomery Sigma=6204456234611665 | | 2017-11-21 | storm5510 | C-PRP | M2273911/404756159/745842809 : D33EAFE77EFD2C0D | | 2017-10-11 | Oliver Kruse | C-PRP | M2273911/404756159/745842809 : D33EAFE77EFD2C0D | | 2016-04-30 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2008-07-14 | George Woltman | F-ECM | Factor: 745842809 |
|
