| 7853737 | 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 | 280 / 280 | | 30 | 250000 | 190 / 640 |
Estimated T-Level: 26.5 ⓘ TF below 2^83 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1999-08-16 | Jack Wilkins | ED8F51756789099B | 5039895 | Windows,Prime95,v18,(aka WU1) | | Factored | 2002-06-09 | Pat Lett | ED8F51756789099B | 5606178 | Windows,Prime95,v21,(aka WX1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2020-08-26 | storm5510 | 69A29F6A1E7F22AC | 1 | 228963 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2020-08-26 | Ben Delo | CERT | Proof certified good | | 2020-08-26 | storm5510 | C-PRP | M7853737/1431020668072132398607 : 69A29F6A1E7F22AC Proof Certified Good
Proof Power: 8
| | 2020-08-26 | Jan S. | F-PM1 | Factor: 1431020668072132398607 / B1=20000000, B2=2000000000 | | 2020-08-21 | storm5510 | NF-PM1 | B1=285000, B2=5771250 | | 2020-02-28 | TJAOI | NF | no factor TF: 68-69 | | 2018-08-05 | ramgeis | NF | no factor TF: 67-68 | | 2016-08-28 | Gordon Spence | NF | no factor TF: 66-67 | | 2015-06-09 | VictordeHollander | NF | no factor TF: 65-66 | | 2013-10-11 | David Campeau | NF | no factor TF: 64-65 | | 2013-10-05 | Nesowa | NF | no factor TF: 63-64 | | 2012-10-06 | Nesowa | NF-PM1 | B1=100000, B2=1900000, E=6 | | 2002-06-09 | lettp | C-LL | ED8F51756789099B | | 2002-05-25 | lettp | NF-PM1 | B1=45000, B2=686250 | | 1999-08-16 | -anonymous- | C-LL | ED8F51756789099B | | 1999-02-21 | -anonymous- | NF | no factor TF: 1-63 | | 1998-10-25 | -anonymous- | NF | no factor TF: 1-62 |
|
