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# 7-2 Prime Factorization

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• What's missing are the cool lasers firing. In the actual presentation you see the asteroids being destroyed.

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• ### 7-2 Prime Factorization

1. 1. 7-2 Prime Factorization Math Notes Number Sense 1.4
2. 2. Consider this...
3. 3. Consider this... Prime Factorization is similar to the video game Asteroids.
4. 4. Consider this... Prime Factorization is similar to the video game Asteroids. A spaceship shoots a large asteroid.
5. 5. Consider this... Prime Factorization is similar to the video game Asteroids. A spaceship shoots a large asteroid. The asteroid breaks into smaller pieces.
6. 6. Consider this... Prime Factorization is similar to the video game Asteroids. A spaceship shoots a large asteroid. The asteroid breaks into smaller pieces. The spaceship shoots those and they break into even smaller pieces.
7. 7. Is 24 a prime? 24
8. 8. Is 24 a prime? Is 6 a prime? 24 Is 4 a prime? 6 4
9. 9. Is 24 a prime? Is 6 a prime? 24 Is 4 a prime? 6 4 3 2 2 2
10. 10. Is 24 a prime? Is 6 a prime? 24 Is 4 a prime? 6 4 3 2 2 2 If you’re left with ALL prime...
11. 11. Is 24 a prime? Is 6 a prime? 24 Is 4 a prime? 6 4 3 2 2 2 If you’re left ...your answer is with ALL prime... 2x2x2x3
12. 12. Is 18 a prime? 18
13. 13. Is 18 a prime? Is 9 a prime? 18 Is 2 a prime? 9 2
14. 14. Is 18 a prime? Is 9 a prime? 18 Is 2 a prime? 9 2 2 is prime.
15. 15. Is 18 a prime? Is 9 a prime? 18 Is 2 a prime? 9 2 2 is prime. 3 3
16. 16. Is 18 a prime? Is 9 a prime? 18 Is 2 a prime? 9 2 2 is prime. 3 3 If you’re left with ALL prime...
17. 17. Is 18 a prime? Is 9 a prime? 18 Is 2 a prime? 9 2 2 is prime. 3 3 If you’re left ...your answer is with ALL prime... 3x3x2
18. 18. Is 40 a prime? 40
19. 19. Is 40 a prime? Is 10 a prime? 40 Is 4 a prime? 10 4
20. 20. Is 40 a prime? Is 10 a prime? 40 Is 4 a prime? 10 4 5 2 2 2
21. 21. Is 40 a prime? Is 10 a prime? 40 Is 4 a prime? 10 4 5 2 2 2 If you’re left with ALL prime...
22. 22. Is 40 a prime? Is 10 a prime? 40 Is 4 a prime? 10 4 5 2 2 2 If you’re left ...your answer is with ALL prime... 2x2x2x5