| 2347949 | Composite, with 1 known prime factor. Cofactor is composite. Trial Factored to 268 TF target 262 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 164 / 280 |
Estimated T-Level: 22.9 ⓘ TF below 2^71 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | David Linton | D39CB9F924A9D525 | 0 | Windows,Prime95,v14,(aka WQ1) | | Factored | | Joakim Rosqvist | D39CB9F924A9D525 | 0 | Linux 32-bit,Prime95,v13,(aka WP2) | | Factored | 1999-03-01 | Andrew Haveland-Robinson | D39CB9F924A9D525 | 2222161 | Windows,Prime95,v17,(aka WT1) |
|
| 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 | FDC4CA22CC00D0D5 | 1 | 0 | 1 | 3 | | Verified | PRP without proof (not generated) | 2017-11-24 | storm5510 | FDC4CA22CC00D0D5 | 1 | 2049884 | 1 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2018-03-18 | alpertron | NF-PM1 | B1=500000, B2=15000000, E=12 | | 2017-11-24 | storm5510 | C-PRP | M2347949/3608379626925583087 : FDC4CA22CC00D0D5 | | 2017-10-12 | Oliver Kruse | C-PRP | M2347949/3608379626925583087 : FDC4CA22CC00D0D5 | | 2012-05-29 | Sebastian Hornbostel | F-ECM | Factor: 3608379626925583087 | | 2010-03-05 | Bud | NF-PM1 | B1=500000, B2=10000000, E=12 | | 2009-01-16 | Sturle Sunde | NF | no factor TF: 60-61 | | 2003-09-21 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-05-09 | -anonymous- | C-LL | D39CB9F924A9D525 | | 1999-03-01 | -anonymous- | C-LL | D39CB9F924A9D525 |
|
