| 2350741 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 280 / 280 | | 30 | 250000 | 142 / 640 |
Estimated T-Level: 26.1 ⓘ TF below 2^82 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Bob Devine | C63B48AC2D5C2EA7 | 0 | Windows,Prime95,v13,(aka WP1) | | Factored | | Michael Cederberg | C63B48AC2D5C2EA7 | 0 | Windows,Prime95,v13,(aka WP1) | | Factored | 1999-03-15 | Stephen Wood | C63B48AC2D5C2EA7 | 365839 | Linux 32-bit,Prime95,v17,(aka WT2) |
|
| PRP Cofactor | | Status | Proof | Date | User | Residue | Number of
known factors | Shift | Type | Base |
|---|
| Verified | PRP without proof (not generated) | 2017-10-12 | Oliver Kruse | 61678AE84F915FB1 | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-11-24 | storm5510 | 61678AE84F915FB1 | 1 | 1323334 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2018-04-27 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-11-24 | storm5510 | C-PRP | M2350741/475286245893769347967 : 61678AE84F915FB1 | | 2017-10-12 | Oliver Kruse | C-PRP | M2350741/475286245893769347967 : 61678AE84F915FB1 | | 2016-12-27 | bam | F-ECM | Factor: 475286245893769347967 | | 2016-02-23 | Mark Rose | NF | no factor TF: 1-60 | | 2015-10-27 | ramgeis | NF | no factor TF: 65-66 | | 2015-03-06 | VictordeHollander | NF | no factor TF: 64-65 | | 2015-03-06 | VictordeHollander | NF | no factor TF: 63-64 | | 2012-06-03 | Richard B. Woods | NF | no factor TF: 62-63 | | 2011-08-30 | Richard B. Woods | NF | no factor TF: 61-62 | | 2010-03-12 | Bud | NF-PM1 | B1=250000, B2=25000000, E=12 | | 2009-01-16 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-09-21 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-03-15 | Stephen Wood | C-LL | C63B48AC2D5C2EA7 |
|
