| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| whats the hardest math problem | 0.98 | 0.4 | 6859 | 6 |
| what is the hardest math problem in the world | 2 | 0.4 | 1623 | 75 |
| what's the hardest math problem in the world | 1.82 | 0.7 | 477 | 55 |
| what is the hardest math problem to solve | 0.92 | 0.2 | 3567 | 85 |
| what is the hardest math problem in history | 1.44 | 0.4 | 9909 | 77 |
| what is the hardest math problem answer | 0.89 | 0.4 | 3697 | 41 |
| what is the hardest math problem on earth | 0.56 | 0.4 | 2277 | 29 |
| what is the hardest math problem ever created | 1.68 | 0.9 | 3465 | 34 |
| what is the hardest math problem | 1.84 | 1 | 7936 | 89 |
| what is the worlds hardest math problem | 0.35 | 1 | 1137 | 18 |
| what is the hardest math problem ever | 0.47 | 0.2 | 9268 | 37 |
| what is the world's most hardest math problem | 1.15 | 0.6 | 7622 | 41 |
