| 3719377 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 126 / 280 |
Estimated T-Level: 22.3 ⓘ TF below 2^69 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-01-16 | Steffen Haugk | C0940AE43736744C | 0 | Windows,Prime95,v15,(aka WR1) | | Factored | 1999-10-15 | Binary Digits | C0940AE43736744C | 1719904 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-23 | Andrey Dobrynin | DD66F630E5EFD4FB | 1 | 2886311 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-23 | wigglefruit | CERT | Proof certified good | | 2025-01-23 | Andrey Dobrynin | C-PRP | Proof Certified Good
Proof Power: 7
| | 2025-01-23 | Andrey Dobrynin | F-ECM | Factor: 82623443994596928425897 / ECM curve 4, B1=106987, B2=194573610, Edwards Sigma=3715668278352327 | | 2024-09-13 | Joss | NF-PM1 | B1=10000000, B2=14452898460 | | 2024-01-01 | Joss | NF-PM1 | B1=2354028, B2=5118553440 | | 2023-09-03 | Joss | NF-PM1 | B1=1000000, B2=1508917410 | | 2021-05-22 | axn | NF-PM1 | B1=14000000, B2=700000000 | | 2021-03-09 | axn | NF | no factor TF: 69-70 | | 2020-12-15 | axn | NF | no factor TF: 68-69 | | 2019-01-07 | TJAOI | NF | no factor TF: 67-68 | | 2016-11-01 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-02-24 | ramgeis | NF | no factor TF: 65-66 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-01-22 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-01-22 | VictordeHollander | NF | no factor TF: 63-64 | | 2012-12-19 | Squeeky_Squirrel | NF-PM1 | B1=245000, B2=7717500, E=12 | | 2012-04-19 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2011-04-23 | Grant McCracken | NF | no factor TF: 61-62 | | 2009-07-06 | Carsten Kossendey | NF-PM1 | B1=20000, B2=265000 | | 2009-03-05 | S485122 | NF | no factor TF: 60-61 | | 1999-10-15 | binarydigits | C-LL | C0940AE43736744C | | 1998-01-16 | -anonymous- | C-LL | C0940AE43736744C | | 1997-12-13 | -anonymous- | NF | no factor TF: 1-60 |
|
