| 7015661 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 269 TF target 267 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 6 / 280 |
Estimated T-Level: 20.1 ⓘ TF below 2^62 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1999-04-13 | Joel Armengaud | E94574DCF0A34FB5 | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 2002-09-22 | M. D. S. | E94574DCF0A34FB5 | 4892373 | Windows,Prime95,v21,(aka WX1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2020-04-17 | ATH | 72C4BCFA545823A9 | 1 | 6715870 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-04-21 | Luigi Morelli | 72C4BCFA545823A9 | 1 | 6067890 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2020-04-21 | Luigi Morelli | C-PRP | M7015661/585224297048424709591 : 72C4BCFA545823A9 | | 2020-04-17 | ATH | C-PRP | M7015661/585224297048424709591 : 72C4BCFA545823A9 | | 2020-04-17 | TJAOI | F | Factor: 585224297048424709591 / TF: 68-69 | | 2018-07-19 | ramgeis | NF | no factor TF: 67-68 | | 2016-04-26 | america64 | NF | no factor TF: 66-67 | | 2015-06-12 | VictordeHollander | NF | no factor TF: 65-66 | | 2014-02-13 | -anonymous- | NF | no factor TF: 64-65 | | 2014-02-06 | Nesowa | NF | no factor TF: 63-64 | | 2011-04-22 | Carsten Kossendey | NF-PM1 | B1=445000, B2=13572500, E=12 | | 2002-09-22 | -anonymous- | C-LL | E94574DCF0A34FB5 | | 2001-10-13 | -anonymous- | NF-PM1 | B1=30000, B2=30000 | | 2001-10-13 | -anonymous- | NF | no factor TF: 1-63 | | 1999-04-13 | Joel Armengaud | C-LL | E94574DCF0A34FB5 | | 1998-10-29 | -anonymous- | NF | no factor TF: 1-62 | | 1998-06-28 | -anonymous- | NF | no factor TF: 1-62 | | 1998-05-23 | -anonymous- | NF | no factor TF: 1-62 |
|
