| 2295481 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| P-1 factors | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 127 / 640 |
Estimated T-Level: 26.0 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Martin Schnettker | 46B929FCF875E260 | 0 | Mac,John Sweeney,v1.4,(aka J3) | | Factored | 1999-03-01 | Colin Smart | 46B929FCF875E260 | 324497 | Windows,Prime95,v17,(aka WT1) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Factored | PRP without proof (not generated) | 2017-10-11 | Oliver Kruse | 25D27CF59242F886 | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-10-18 | Oliver Kruse | ED144CE5F05D27AA | 2 | 1593550 | 5 | 3 | | Verified | PRP without proof (not generated) | 2017-11-22 | storm5510 | ED144CE5F05D27AA | 2 | 746437 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2017-11-22 | storm5510 | C-PRP | M2295481/2221445839821437480191/8205528212118389719964431 : ED144CE5F05D27AA | | 2017-10-18 | Oliver Kruse | C-PRP | M2295481/2221445839821437480191/8205528212118389719964431 : ED144CE5F05D27AA | | 2017-10-11 | Oliver Kruse | C-PRP | M2295481/known_factors : 25D27CF59242F886 | | 2016-04-26 | alpertron | F-PM1 | Factor: 8205528212118389719964431 / B1=500000, B2=15000000 | | 2016-02-23 | Mark Rose | NF | no factor TF: 58-60 | | 2016-02-13 | bam | F-ECM | Factor: 2221445839821437480191 | | 2016-01-16 | Joss | NF-PM1 | B1=431391, B2=4313910, E=6 | | 2015-11-04 | ramgeis | NF | no factor TF: 65-66 | | 2015-03-12 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-03-12 | VictordeHollander | NF | no factor TF: 63-64 | | 2014-10-03 | Joss | NF-PM1 | B1=140922 | | 2014-06-11 | Joss | NF-PM1 | B1=112961 | | 2013-01-23 | dbaugh | NF | no factor TF: 62-63 | | 2012-05-12 | Sebastian Hornbostel | NF | no factor TF: 61-62 | | 2011-01-17 | Oscar Östlin | NF-PM1 | B1=85000, B2=1742500, E=6 | | 2010-12-03 | Oscar Östlin | NF-PM1 | B1=75011 | | 2010-11-15 | Joss | NF-PM1 | B1=20000 | | 2010-11-07 | Joss | NF-PM1 | B1=15000 | | 2009-01-16 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-08-08 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-04-02 | ANONYMOUS | C-LL | 46B929FCF875E260 | | 1999-03-01 | ANONYMOUS | C-LL | 46B929FCF875E260 | | 1999-02-07 | ANONYMOUS | NF | no factor TF: 1-58 | | 1998-11-28 | ANONYMOUS | NF | no factor TF: 1-58 | | 1998-11-21 | ANONYMOUS | NF | no factor TF: 1-58 | | 1998-11-07 | ANONYMOUS | NF | no factor TF: 1-58 | | 1998-10-11 | ANONYMOUS | NF | no factor TF: 1-58 |
|
