| 7640767 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 269 TF target 267 |
| Factored | |
| P-1 factors | |
| 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 | 2000-02-16 | Debbie Pittrizzi | 0B13CF682358E225 | 2725835 | Windows,Prime95,v18,(aka WU1) | | Factored | 2002-04-20 | Rick Cummings | 0B13CF682358E225 | 4730718 | 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) | 2020-05-23 | riccardo uberti | AAF1805C0AE3D7E5 | 1 | 75380 | 5 | 3 | | Verified | PRP without proof (not generated) | 2020-05-24 | Luigi Morelli | AAF1805C0AE3D7E5 | 1 | 5102904 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-10-17 | Sid & Andy | NF-PM1 | B1=2400000, B2=3901006200 | | 2020-05-24 | Luigi Morelli | C-PRP | M7640767/23688011745096659032801 : AAF1805C0AE3D7E5 | | 2020-05-23 | riccardo uberti | C-PRP | M7640767/23688011745096659032801 : AAF1805C0AE3D7E5 | | 2020-05-21 | GdS | F-PM1 | Factor: 23688011745096659032801 / B1=310809, B2=6216181 | | 2020-02-28 | TJAOI | NF | no factor TF: 68-69 | | 2018-07-31 | ramgeis | NF | no factor TF: 67-68 | | 2016-09-16 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-06-12 | VictordeHollander | NF | no factor TF: 65-66 | | 2013-12-05 | David Campeau | NF | no factor TF: 64-65 | | 2013-10-11 | Nesowa | NF | no factor TF: 63-64 | | 2012-07-27 | Nesowa | NF-PM1 | B1=95000, B2=1757500, E=6 | | 2002-04-20 | -anonymous- | C-LL | 0B13CF682358E225 | | 2002-04-07 | -anonymous- | NF-PM1 | B1=35000, B2=323750 | | 2000-02-16 | -anonymous- | C-LL | 0B13CF682358E225 | | 1998-11-21 | -anonymous- | NF | no factor TF: 1-63 | | 1998-10-25 | -anonymous- | NF | no factor TF: 1-62 |
|
