| 2317123 | 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 | 169 / 640 |
Estimated T-Level: 26.3 ⓘ 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 | C91B8FF18D0B605D | 2 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-23 | storm5510 | C91B8FF18D0B605D | 2 | 1410434 | 1 | 3 | | Verified | Certified Good | 2025-10-19 | JC_Herles | 581E6EA3D23EC8F3 | 3 | 2164639 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-10-19 | pilot no more | CERT | Proof certified good | | 2025-10-19 | JC_Herles | C-PRP | M2317123/926849201/5751099287/416591023860404326009 : 581E6EA3D23EC8F3 Proof Certified Good
Proof Power: 7
| | 2025-10-19 | JC_Herles | F-ECM | Factor: 416591023860404326009 / ECM curve 1, B1=104366, B2=54374686, Edwards Sigma=321517935593422 | | 2021-04-07 | ViliamF | NF-PM1 | B1=5000000, B2=505000000 | | 2018-02-26 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-23 | storm5510 | C-PRP | M2317123/926849201/5751099287 : C91B8FF18D0B605D | | 2017-10-11 | Oliver Kruse | C-PRP | M2317123/926849201/5751099287 : C91B8FF18D0B605D | | 2008-07-14 | George Woltman | F-ECM | Factor: 5751099287 |
|
