| 2494637 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 100 / 280 |
Estimated T-Level: 21.8 ⓘ TF below 2^67 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Bruce Appleby | 2721498629E60F1C | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | 1999-08-16 | Stephen Scott | 2721498629E60F1C | 1179569 | Windows,Prime95,v18,NT service,(aka WU5) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-14 | Oliver Kruse | 23DC7FCDFC9E42CD | 1 | 1958537 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-11-30 | storm5510 | 23DC7FCDFC9E42CD | 1 | 1663955 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-30 | storm5510 | C-PRP | M2494637/12495061630705545151529 : 23DC7FCDFC9E42CD | | 2017-10-14 | Oliver Kruse | C-PRP | M2494637/12495061630705545151529 : 23DC7FCDFC9E42CD | | 2016-06-25 | lettp | F-ECM | Factor: 12495061630705545151529 | | 2016-02-23 | Mark Rose | NF | no factor TF: 59-60 | | 2015-10-31 | ramgeis | NF | no factor TF: 65-66 | | 2015-03-03 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-03-03 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-12-05 | mikr | NF-PM1 | B1=2382500, B2=85770100, E=12 | | 2014-09-10 | Joss | NF-PM1 | B1=120729 | | 2013-12-04 | Jerry Hallett | NF | no factor TF: 62-63 | | 2012-06-11 | Sebastian Hornbostel | NF | no factor TF: 61-62 | | 2011-01-24 | Oscar Östlin | NF-PM1 | B1=95000, B2=1971250, E=6 | | 2010-12-22 | Joss | NF-PM1 | B1=20000 | | 2009-01-11 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-10-31 | Team Prime Rib | NF-PM1 | B1=15000, B2=228750 | | 2003-10-23 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-08-16 | -anonymous- | C-LL | 2721498629E60F1C | | 1999-08-16 | -anonymous- | NF | no factor TF: 1-59 |
|
