| 3267149 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 264 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 161 / 280 |
Estimated T-Level: 22.9 ⓘ TF below 2^71 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Joel Armengaud | 8C5B5CCD308E092C | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-06-26 | Chuck Wolber | 8C5B5CCD308E092C | 969886 | Windows,Prime95,v18,(aka WU1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-08 | fordobr | 2CEF4D2C4063FF1E | 1 | 3239443 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-08 | Asriel | CERT | Proof certified good | | 2025-01-08 | fordobr | C-PRP | M3267149/62353160528028215662217 : 2CEF4D2C4063FF1E Proof Certified Good
Proof Power: 7
| | 2025-01-08 | fordobr | F-ECM | Factor: 62353160528028215662217 / ECM curve 3, B1=137439, B2=240218550, Edwards Sigma=8184752436672974 | | 2023-05-05 | Sid & Andy | NF-PM1 | B1=10000000, B2=25661079990 | | 2022-05-31 | TJAOI | NF | no factor TF: 69-70 | | 2021-05-31 | TJAOI | NF | no factor TF: 68-69 | | 2021-02-14 | axn | NF-PM1 | B1=10000000, B2=400000000 | | 2020-11-13 | mikr | NF-PM1 | B1=4000000, B2=150000000 | | 2018-12-17 | TJAOI | NF | no factor TF: 67-68 | | 2017-04-04 | Gordon Spence | NF | no factor TF: 66-67 | | 2016-01-14 | Joss | NF-PM1 | B1=378000, B2=3780000, E=6 | | 2015-06-28 | Tha | NF | no factor TF: 65-66 | | 2015-02-07 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-02-07 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-10-10 | Joss | NF-PM1 | B1=99290 | | 2014-06-21 | Joss | NF-PM1 | B1=79645 | | 2012-12-30 | dbaugh | NF | no factor TF: 62-63 | | 2011-09-20 | markr | NF | no factor TF: 61-62 | | 2011-09-17 | USAFSS | NF-PM1 | B1=60000, B2=1050000, E=6 | | 2009-07-08 | Carsten Kossendey | NF-PM1 | B1=15000, B2=191250 | | 2009-04-03 | S485122 | NF | no factor TF: 60-61 | | 2001-05-20 | David Campeau | NF | no factor TF: 1-60 | | 1999-06-26 | -anonymous- | C-LL | 8C5B5CCD308E092C |
|
