| 2308079 | 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 | 121 / 640 |
Estimated T-Level: 25.9 ⓘ TF below 2^81 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Thomas Honold | A659FC29F216C030 | 0 | Linux 32-bit,Prime95,v13,(aka WP2) | | Factored | 1999-05-09 | Ethan Hansen | A659FC29F216C030 | 17392 | 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) | 2017-10-11 | Oliver Kruse | FFDE01CCD23B5A37 | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-11-22 | storm5510 | FFDE01CCD23B5A37 | 1 | 1374319 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2021-04-09 | ViliamF | NF-PM1 | B1=5000000, B2=405000000 | | 2018-02-21 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-22 | storm5510 | C-PRP | M2308079/4058122300758072409 : FFDE01CCD23B5A37 | | 2017-10-11 | Oliver Kruse | C-PRP | M2308079/4058122300758072409 : FFDE01CCD23B5A37 | | 2012-05-13 | Sebastian Hornbostel | F-ECM | Factor: 4058122300758072409 | | 2010-02-16 | Bud | NF-PM1 | B1=500000, B2=10000000, E=12 | | 2009-01-14 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-09-14 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-05-09 | Dry Creek Photo | C-LL | A659FC29F216C030 |
|
