| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| natural numbers include zero | 0.89 | 1 | 609 | 100 | 28 |
| natural | 0.96 | 0.8 | 3227 | 98 | 7 |
| numbers | 1.49 | 0.4 | 6886 | 76 | 7 |
| include | 1.34 | 0.5 | 8331 | 80 | 7 |
| zero | 0.34 | 0.6 | 7210 | 55 | 4 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| natural numbers include zero | 1.25 | 0.4 | 151 | 35 |
