| 17672971 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 273 TF target 269 |
| Factored | |
| P-1 factors | | Date | Factors | B1 | B2 |
|---|
| 2025-01-05 | No new factors discovered | 246000 | 352321200 |
|
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 73 / 280 |
Estimated T-Level: 21.3 ⓘ TF below 2^66 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 2003-02-09 | Rommel C. Zulueta | 6671209D819AA857 | 2350091 | FreeBSD 32-bit,Prime95,v22,(aka WY6) | | Factored | 2007-02-05 | Eric Bravick | 6671209D819AA857 | 16410096 | Linux 32-bit,Prime95,v24 final,(aka Wc2) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-06 | NStorm | 219440B24B7B866F | 1 | 8382314 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-30 | James Heinrich | F | Factor: 329771433739205050841 / TF: 1-69 | | 2025-01-06 | NStorm | F | Factor: 329771433739205050841 / TF: 68-70 | | 2025-01-06 | Poao | CERT | Proof certified good | | 2025-01-06 | NStorm | C-PRP | M17672971/329771433739205050841 : 219440B24B7B866F Proof Certified Good
Proof Power: 8
| | 2025-01-05 | NStorm | NF-PM1 | B1=16685299, B2=771138522 | | 2025-01-05 | NStorm | NF | no factor TF: 72-73 | | 2025-01-05 | NStorm | F-PM1 | Factor: 329771433739205050841 / B1=246000, B2=352321200 | | 2025-01-05 | NStorm | NF | no factor TF: 71-72 | | 2025-01-05 | NStorm | NF | no factor TF: 70-71 | | 2018-03-21 | ramgeis | F | Factor: 329771433739205050841 / TF: 68-69* | | 2018-03-21 | ramgeis | NF | no factor TF: 67-68 | | 2014-08-25 | Nesowa | NF | no factor TF: 66-67 | | 2014-02-15 | Nesowa | NF | no factor TF: 65-66 | | 2007-02-05 | ebravick | C-LL | 6671209D819AA857 | | 2003-02-09 | delta_t | C-LL | 6671209D819AA857 | | 2003-01-09 | delta_t | NF-PM1 | B1=285000 | | 2001-09-30 | TobyLL | NF | no factor TF: 1-65 | | 2001-04-08 | Net_Force | NF | no factor TF: 1-59 | | 2001-02-25 | Net_Force | NF | no factor TF: 1-58 |
|
