| 1793819 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 261 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 108 / 640 |
Estimated T-Level: 25.8 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Martin Brennfleck | 7B084E1ABC233BB2 | 0 | Linux 32-bit,Prime95,v11,(aka WL) | | Factored | 1998-12-27 | David Underbakke | 7B084E1ABC233BB2 | 545696 | Windows,Prime95,v17,NT service,(aka WT5) |
|
| PRP | | Status | Proof | Date | User | Residue | Shift | Type | Base |
|---|
| Factored | Certified Good Power=6 | 2025-09-02 | Kriesel | 3843B9656AE477A6 | 0 | 1 | 3 |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Factored | PRP without proof (not generated) | 2017-10-03 | Oliver Kruse | 0BEF1A93FA0772FA | 1 | 0 | 1 | 3 | | Factored | PRP without proof (not generated) | 2017-11-05 | kkmrkkblmbrbk | 0BEF1A93FA0772FA | 1 | 175750 | 1 | 3 | | Verified | Certified Good | 2020-08-09 | storm5510 | 3843B9656AE477A6 | 2 | 1194198 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-09-03 | Carlos Pinho | CERT | Proof certified good | | 2025-09-02 | Kriesel | C-PRP | 3843B9656AE477A6 Proof Certified Good
Proof Power: 6
| | 2020-08-09 | Chuck | CERT | Proof certified good | | 2020-08-09 | storm5510 | C-PRP | M1793819/44615328073477656071/408777848753217898601 : 3843B9656AE477A6 Proof Certified Good
Proof Power: 7
| | 2020-08-09 | Ahmed Azhad | F-ECM | Factor: 408777848753217898601 / ECM curve 1, B1=50000, B2=5000000, Montgomery Sigma=5675942392440874 | | 2017-11-05 | kkmrkkblmbrbk | C-PRP | M1793819/44615328073477656071 : 0BEF1A93FA0772FA | | 2017-10-03 | Oliver Kruse | C-PRP | M1793819/44615328073477656071 : 0BEF1A93FA0772FA | | 2016-03-16 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 1998-12-27 | -anonymous- | C-LL | 7B084E1ABC233BB2 |
|
