| 6749131 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 267 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 3 / 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 | 1999-07-12 | Brian O'Kelley | B0896A5B1980DB92 | 4750037 | Windows,Prime95,v18,(aka WU1) | | Factored | 2001-06-03 | Eric Weddington | B0896A5B1980DB92 | 3943999 | Windows,Prime95,v20,(aka WW1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2018-01-05 | ATH | 489A84C80521D083 | 1 | 5150016 | 5 | 3 | | Verified | PRP without proof (not generated) | 2018-12-09 | storm5510 | 489A84C80521D083 | 1 | 2909691 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-03 | Stef42 | NF-PM1 | B1=1000000, B2=2025454200 | | 2018-12-09 | storm5510 | C-PRP | M6749131/153094482629505438322177 : 489A84C80521D083 | | 2018-01-05 | ATH | C-PRP | M6749131/153094482629505438322177 : 489A84C80521D083 | | 2012-07-06 | Nesowa | F-PM1 | Factor: 153094482629505438322177 | | 2004-10-18 | David Campeau | NF | no factor TF: 1-63 | | 2004-08-20 | -anonymous- | NF-PM1 | B1=35000, B2=446250 | | 2004-08-20 | -anonymous- | C-LL | B0896A5B1980DB92 | | 2001-06-03 | -anonymous- | C-LL | B0896A5B1980DB92 | | 2001-05-13 | -anonymous- | NF-PM1 | B1=35000, B2=446250 | | 1999-07-12 | -anonymous- | C-LL | B0896A5B1980DB92 | | 1998-09-20 | -anonymous- | NF | no factor TF: 1-62 |
|
