| 4031399 | Composite, with 4 known prime factors. Cofactor is composite. Trial Factored to 273 TF target 265 |
| Factored | |
| P-1 factors | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 640 / 640 | | 35 | 1000000 | 228 / 1566 |
Estimated T-Level: 30.7 ⓘ TF below 2^97 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) | 2017-11-12 | kkmrkkblmbrbk | C3B8E95C43B2F32E | 3 | 1384566 | 5 | 3 | | Factored | PRP without proof (not generated) | 2018-01-07 | Oliver Kruse | C3B8E95C43B2F32E | 3 | 2497225 | 5 | 3 | | Verified | Certified Good | 2024-07-23 | kkmrkkblmbrbk | C3B8E95C43B2F32E | 4 | 3958414 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-06-14 | kkmrkkblmbrbk | F | Factors: 96753577,13798422550463 / TF: 68-73 | | 2024-07-23 | Sage Russell | CERT | Proof certified good | | 2024-07-23 | kkmrkkblmbrbk | C-PRP | M4031399/8062799/96753577/13798422550463/3666649360825662734376235271021670317369183303561 : C3B8E95C43B2F32E Proof Certified Good
Proof Power: 7
| | 2024-07-23 | kkmrkkblmbrbk | F-PM1 | Factor: 3666649360825662734376235271021670317369183303561 / B1=150000000, B2=962316935580 | | 2024-06-16 | kkmrkkblmbrbk | NF-PP1 | Start=2/7, B1=40000000, B2=39960000000 | | 2022-08-17 | USAFSS | NF-PM1 | B1=180000, B2=96593640 | | 2018-01-07 | Oliver Kruse | C-PRP | M4031399/8062799/96753577/13798422550463 : C3B8E95C43B2F32E | | 2017-11-12 | kkmrkkblmbrbk | C-PRP | M4031399/8062799/96753577/13798422550463 : C3B8E95C43B2F32E | | 2008-09-07 | Will Edgington | F | Factor: 13798422550463 | | 2008-09-07 | Will Edgington | F | Factor: 96753577 |
|
