| 2614427 | Composite, with 2 known prime factors. Cofactor is composite. Trial Factored to 268 TF target 263 |
| Factored | |
| ECM | | Digits | B1 | Curves |
|---|
| 25 | 50000 | 115 / 280 |
Estimated T-Level: 22.1 ⓘ TF below 2^68 is very unlikely to find new factors due to ECM effort. |
| LL | | Status | Date | User | Residue | Shift | Software |
|---|
| Factored | | Stephan Grupp | 155474371D4D50EE | 0 | Windows,Prime95,v13,(aka WP1) | | Factored | 1999-04-13 | James Arnold | 155474371D4D50EE | 1471984 | 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) | 2017-10-17 | Oliver Kruse | 91DA46236C67976C | 1 | 2586091 | 5 | 3 | | Factored | PRP without proof (not generated) | 2017-12-02 | storm5510 | 91DA46236C67976C | 1 | 1295117 | 5 | 3 | | Verified | Certified Good | 2024-04-21 | Anton Tsvetkov | 91DA46236C67976C | 2 | 1040892 | 5 | 3 |
|
| History | | Date | User | Type | Result |
|---|
| 2024-04-21 | Gabriel Löfdahl | CERT | Proof certified good | | 2024-04-21 | Anton Tsvetkov | C-PRP | M2614427/15954336907692779491849/62218659302312829996319 : 91DA46236C67976C Proof Certified Good
Proof Power: 7
| | 2024-04-21 | debrouxl | F-ECM | Factor: 62218659302312829996319 / ECM curve 44, B1=50000, B2=6750000, Montgomery Sigma=4400181498248894 | | 2019-07-04 | alpertron | NF-PM1 | B1=2000000, B2=60000000, E=12 | | 2017-12-02 | storm5510 | C-PRP | M2614427/15954336907692779491849 : 91DA46236C67976C | | 2017-10-17 | Oliver Kruse | C-PRP | M2614427/15954336907692779491849 : 91DA46236C67976C | | 2003-11-08 | Team Prime Rib | F-PM1 | Factor: 15954336907692779491849 | | 2003-10-31 | -anonymous- | NF-PM1 | B1=2048, B2=204800 | | 1999-04-13 | -anonymous- | C-LL | 155474371D4D50EE | | 1999-03-26 | -anonymous- | NF | no factor TF: 1-59 |
|
