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Prime- Composite Numbers & MathLine

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  1. Prime/Composite Numbers Prime-Composite Numbers & MathLine

  2. Prime/Composite Numbers Definition of Prime Numbers: All natural numbers greater than 1 divisible by only 1 & itself. Definition of Composite Numbers: All natural numbers greater than 1 divisible by more than 1 & itself.

  3. Prime/Composite Numbers Is 17 a prime or composite number?

  4. Prime/Composite Numbers Try to find factors of 17

  5. Prime/Composite Numbers Is 2 a factor?

  6. Prime/Composite Numbers Is 2 a factor?

  7. Prime/Composite Numbers Is 2 a factor?

  8. Prime/Composite Numbers Is 2 a factor?

  9. Prime/Composite Numbers Is 2 a factor?

  10. Prime/Composite Numbers Is 2 a factor?

  11. Prime/Composite Numbers Is 2 a factor?

  12. Prime/Composite Numbers Is 2 a factor?

  13. Prime/Composite Numbers Is 2 a factor? No! 2 2 2 2 2 2 2 2 1

  14. Prime/Composite Numbers Is 3 a factor?

  15. Prime/Composite Numbers Is 3 a factor?

  16. Prime/Composite Numbers Is 3 a factor?

  17. Prime/Composite Numbers Is 3 a factor?

  18. Prime/Composite Numbers Is 3 a factor?

  19. Prime/Composite Numbers Is 3 a factor? No! 3 3 3 3 3 2

  20. Prime/Composite Numbers Is 4 a factor?

  21. Prime/Composite Numbers Is 4 a factor?

  22. Prime/Composite Numbers Is 4 a factor?

  23. Prime/Composite Numbers Is 4 a factor? No! 4 4 4 4 1

  24. Prime/Composite Numbers Is 5 a factor?

  25. Prime/Composite Numbers Is 5 a factor?

  26. Prime/Composite Numbers Is 5 a factor? No! 5 5 5 2

  27. Prime/Composite Numbers Is 6 a factor?

  28. Prime/Composite Numbers Is 6 a factor?

  29. Prime/Composite Numbers Is 6 a factor? No! 6 5 6

  30. Prime/Composite Numbers Is 7 a factor?

  31. Prime/Composite Numbers Is 7 a factor?

  32. Prime/Composite Numbers Is 7 a factor? No! 7 3 7

  33. Prime/Composite Numbers Is 8 a factor?

  34. Prime/Composite Numbers Is 8 a factor?

  35. Prime/Composite Numbers Is 8 a factor? No! 8 1 8

  36. Prime/Composite Numbers Is 9 a factor? No! 9 8

  37. Prime/Composite Numbers Is 10 a factor? No! 10 7

  38. Prime/Composite Numbers Is 11 a factor? No! 11 6

  39. Prime/Composite Numbers Is 12 a factor? No! 12 5

  40. Prime/Composite Numbers Is 13 a factor? No! 13 4

  41. Prime/Composite Numbers Is 14 a factor? No! 14 3

  42. Prime/Composite Numbers Is 15 a factor? No! 15 2

  43. Prime/Composite Numbers Is 16 a factor? No! 16 1

  44. Prime/Composite Numbers Through trial and error students determine if a number is prime or composite. If they try every possible factor for 17, the student will see that 17 is prime.

  45. Prime/Composite Numbers So 17 is a Prime Number.

  46. Prime/Composite Numbers MathLine answers “WHY?” “Why is 17 Prime?” On MathLine we can see why, that’s what makes it powerful.

  47. Prime/Composite Numbers Is 24 a prime or composite number?

  48. Prime/Composite Numbers • Is 2 a factor?

  49. Prime/Composite Numbers • Is 2 a factor?

  50. Prime/Composite Numbers • Is 2 a factor?