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```Name:_________________________________________________ Date:____________________ Period:____
Accelerated Algebra I
Section 5-1: Factoring Integers
Factor: ___________________________________________________________________________________
___________________________________________________________________________________
Example:
Factor Set: ________________________________________________________________________________
Example: List all the positive pairs of factors of 48.
Prime: ___________________________________________________________________________________
___________________________________________________________________________________
Example:

______________________________________________________________________________

______________________________________________________________________________
Prime Factorization: _______________________________________________________________________
Example: Write the prime factorization of 48.
Common Factor: __________________________________________________________________________
Example: _______ is a common factor of 15 and 25
_______ is a common factor of 6 and 18
Greatest Common Factor: __________________________________________________________________
__________________________________________________________________________________________
Example: Find the GCF of 66 and 90.
List all of the positive factors of each number.
1. 10
2. 24
3. 36
4. 40
7. 56
8. 180
Find the prime factorization of each number.
5. 30
6. 64
Find the GCF of each group of numbers.
9. 24, 36
10. 18, 36
11. 16, 24
12. 36, 90
13. 28, 70
14. 120, 128
How to use your calculator to find the GCF:
1. Press MATH
2. Scroll to NUM (numbers)
3. Scroll down to gcd
4. Press ENTER
5. Enter #,# (enter the two numbers with a comma between the numbers)
6. Press ENTER
Use your calculator to find the GCF:
15. 126, 144
16. 17, 68
18. 48, 72
19. 260, 325
```
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