Across
- 3. It’s a little strange; can't split in half without remainders
- 5. Only has itself and one as its factors
- 6. what multiplication produces
- 9. Meeting at a right angle
- 11. Divisible by two, no leftovers
- 13. This crossword puzzle's theme
- 14. Number raised to new heights
- 15. Perimeter, but for circles
- 16. The outcome of division — unless there's a remainder
Down
- 1. rise over run
- 2. Longest side of a right triangle
- 4. result of one number leaving another
- 7. A picture worth a thousand equations
- 8. Never meet
- 10. Like your to-do list — it never ends
- 12. Full length across a circle