| 2874353 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 270 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 247 / 280 |
Estimated T-Level: 24.4 ⓘ TF below 2^76 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | 1998-06-14 | D. Breithaupt & J. Luebbe | 29E393458317F6B0 | 0 | Windows,Prime95,v16,(aka WS1) | | Factored | 1999-07-26 | Brian J. Beesley | 29E393458317F6B0 | 922045 | Windows,Prime95,v18,(aka WU1) | | Factored | 2018-09-22 | kkmrkkblmbrbk | 29E393458317F6B0 | 474951 | Windows 64-bit,Prime95,v29.4,build 5 |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Certified Good | 2025-01-12 | Ruslan Borisov | 033EA8A6A0609C99 | 1 | 948464 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-01-14 | junkman2usa | CERT | Proof certified good | | 2025-01-12 | Ruslan Borisov | C-PRP | M2874353/9571841585688951937176553 : 033EA8A6A0609C99 Proof Certified Good
Proof Power: 7
| | 2025-01-12 | Ruslan Borisov | F-ECM | Factor: 9571841585688951937176553 / ECM curve 10, B1=170185, B2=194584005, Edwards Sigma=683867485393872 | | 2024-06-06 | Joss | NF-PM1 | B1=10000000, B2=20483266440 | | 2023-11-10 | Joss | NF-PM1 | B1=2609659, B2=5617073280 | | 2023-10-02 | Joss | NF-PM1 | B1=1000000, B2=9301342050 | | 2023-09-14 | Joss | NF-PM1 | B1=1000000, B2=4527142620 | | 2023-09-08 | TJAOI | NF | no factor TF: 69-70 | | 2023-05-24 | Joss | NF-PM1 | B1=1000000, B2=2085523440 | | 2021-05-27 | TJAOI | NF | no factor TF: 68-69 | | 2020-03-03 | masser | NF-PM1 | B1=5000000, B2=200000000, E=12 | | 2019-10-23 | masser | NF-PM1 | B1=2880000, B2=28800000, E=12 | | 2019-01-09 | chuenkit | NF | no factor TF: 67-68 | | 2018-09-22 | kkmrkkblmbrbk | C-LL | 29E393458317F6B0 | | 2017-11-12 | Gordon Spence | NF | no factor TF: 66-67 | | 2017-08-19 | Joss | NF-PM1 | B1=400000, B2=4000000, E=6 | | 2016-02-23 | Mark Rose | NF | no factor TF: 1-60 | | 2016-02-18 | Yxinity | NF | no factor TF: 65-66 | | 2015-04-21 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-04-21 | VictordeHollander | NF | no factor TF: 63-64 | | 2013-01-07 | dbaugh | NF | no factor TF: 62-63 | | 2012-01-22 | markr | NF | no factor TF: 61-62 | | 2011-02-07 | markr | NF-PM1 | B1=200000, B2=5250000, E=6 | | 2011-01-22 | Joss | NF-PM1 | B1=50000 | | 2010-12-23 | Joss | NF-PM1 | B1=20000 | | 2009-07-03 | Carsten Kossendey | NF-PM1 | B1=15000, B2=161250 | | 2009-02-14 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-11-28 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-07-26 | -anonymous- | C-LL | 29E393458317F6B0 | | 1998-06-14 | -anonymous- | C-LL | 29E393458317F6B0 |
|
