| 1846939 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 261 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 108 / 640 |
Estimated T-Level: 25.8 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Jens J Loesel | 424C1A094A2CD697 | 0 | Windows,Prime95,v13,(aka WP1) | | Factored | | Michael Weingran | 424C1A094A2CD697 | 0 | Mac,John Sweeney,v1.4,(aka J3) | | Factored | 2015-07-16 | MadPoo 🙂 | 424C1A094A2CD697 | 103739 | Windows 64-bit,Prime95,v26,(aka We4) |
|
| PRP | | Status | Proof | Date | User | Residue | Shift | Type | Base |
|---|
| Factored | Certified Good Power=6 | 2025-09-02 | Kriesel | FCCD333A8D86D7E3 | 0 | 1 | 3 |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | Not Uploaded | 2020-08-11 | storm5510 | FCCD333A8D86D7E3 | 1 | 441928 | 5 | 3 | | Verified | Certified Good | 2020-11-11 | Oliver Kruse | FCCD333A8D86D7E3 | 1 | 299050 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2025-09-03 | Carlos Pinho | CERT | Proof certified good | | 2025-09-02 | Kriesel | C-PRP | FCCD333A8D86D7E3 Proof Certified Good
Proof Power: 6
| | 2020-11-11 | OLAFE | CERT | Proof certified good | | 2020-11-11 | Oliver Kruse | C-PRP | M1846939/51435126766629082871633 : FCCD333A8D86D7E3 Proof Certified Good
Proof Power: 7
| | 2020-08-11 | storm5510 | C-PRP | M1846939/51435126766629082871633 : FCCD333A8D86D7E3 Proof Not Uploaded
Proof Power: 7
| | 2020-08-11 | GAN | F-ECM | Factor: 51435126766629082871633 / ECM curve 1, B1=50000, B2=5000000, Montgomery Sigma=3417927138139936 | | 2019-06-17 | TJAOI | NF | no factor TF: 67-68 | | 2018-09-21 | Joss | NF-PM1 | B1=1846939, B2=184693900, E=12 | | 2018-02-24 | Joss | NF-PM1 | B1=1846939, B2=99532800, E=12 | | 2018-02-09 | Joss | NF-PM1 | B1=1846939, B2=49766400, E=12 | | 2018-02-02 | Joss | NF-PM1 | B1=1846939, B2=24883200, E=12 | | 2017-10-20 | TJAOI | NF | no factor TF: 66-67 | | 2017-02-06 | Joss | NF-PM1 | B1=1244160, B2=12441600, E=12 | | 2017-01-11 | Joss | NF-PM1 | B1=1036800 | | 2016-10-29 | Joss | NF-PM1 | B1=864000 | | 2016-10-27 | Joss | NF-PM1 | B1=720000 | | 2016-02-23 | Mark Rose | NF | no factor TF: 58-60 | | 2016-02-23 | Mark Rose | NF | no factor TF: 61-62 | | 2016-02-23 | Mark Rose | NF | no factor TF: 62-63 | | 2015-10-06 | Bruno Victal | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2015-09-07 | ramgeis | NF | no factor TF: 65-66 | | 2015-07-16 | MadPoo 🙂 | C-LL | 424C1A094A2CD697 | | 2015-04-27 | snme2pm1 | NF | no factor TF: 64-65 | | 2015-04-27 | snme2pm1 | NF | no factor TF: 63-64 | | 2012-01-01 | markr | NF-PM1 | B1=275000, B2=6000000, E=12 | | 2011-01-21 | GrunwalderGIMP | NF | no factor TF: 1-63 | | 2010-04-09 | Architects Cubed | NF | no factor TF: 60-61 | | 2003-01-16 | -anonymous- | NF | no factor TF: 1-58 |
|
