| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| why is 15 not a prime number | 0.99 | 0.7 | 9877 | 60 |
| why is 15 not a prime number for mathswatch | 0.07 | 1 | 3035 | 79 |
| explain why 15 is not a prime number | 0.94 | 0.1 | 9731 | 17 |
| is a 15 a prime number | 0.26 | 0.8 | 464 | 17 |
| is fifteen a prime number | 1.07 | 0.9 | 3907 | 84 |
| is 15 relatively prime | 0.24 | 0.2 | 672 | 40 |
| numbers relatively prime to 15 | 0.72 | 0.7 | 8545 | 57 |
| prime numbers 1 to 15 | 1.39 | 0.2 | 8067 | 99 |
| why 15 is not a prime number | 0.91 | 0.9 | 1188 | 66 |
| why isn't 15 a prime number | 0.42 | 0.4 | 5286 | 82 |
| why is fifteen not a prime number | 1.11 | 0.1 | 1448 | 14 |
| is a prime number 15 | 0.05 | 0.8 | 3141 | 35 |
| all prime numbers between 0 and 15 | 0.1 | 0.9 | 798 | 57 |
