You Try It!
Can you find the GCF?
Goal:
Goal:
You have learned several strategies for finding the GCF of a set of numbers. Use the strategy of your choice to complete this practice activity.
1. Find the GCF of 45 and 63.
The factors of 45 are: 1, 3, 5, 9, 15, 45. The factors of 63 are: 1, 3, 7, 9, 21, 63.
The factors of 45 are: 1, 3, 5, 9, 15, 45. The factors of 63 are: 1, 3, 7, 9, 21, 63.
The factors of 45 are: 1, 3, 5, 9, 15, 45. The factors of 63 are: 1, 3, 7, 9, 21, 63.
2. Find the GCF of 25 and 100.
The factors of 25 are: 1, 5, 25. The factors of 100 are: 1, 2, 4, 5, 10, 25, 50, 100.
The factors of 25 are: 1, 5, 25. The factors of 100 are: 1, 2, 4, 5, 10, 25, 50, 100.
The factors of 25 are: 1, 5, 25. The factors of 100 are: 1, 2, 4, 5, 10, 25, 50, 100.
3. Find the GCF of 42 and 54.
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42. The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54.
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42. The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54.
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42. The factors of 54 are: 1, 2, 3, 6, 9, 18, 27, 54.
4. Find the GCF of 48 and 60.
The factors of 48 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48. The factors of 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.
The factors of 48 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48. The factors of 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.
The factors of 48 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48. The factors of 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.
5. Find the GCF of 75 and 55.
The factors of 75 are: 1, 3, 5, 15, 25, 75. The factors of 55 are: 1, 5, 11, 55.
The factors of 75 are: 1, 3, 5, 15, 25, 75. The factors of 55 are: 1, 5, 11, 55.
The factors of 75 are: 1, 3, 5, 15, 25, 75. The factors of 55 are: 1, 5, 11, 55.
6. Find the GCF of 88 and 33.
The factors of 88 are: 1, 2, 4, 8, 11, 22, 44, 88. The factors of 33 are: 1, 3, 11, 33.
The factors of 88 are: 1, 2, 4, 8, 11, 22, 44, 88. The factors of 33 are: 1, 3, 11, 33.
The factors of 88 are: 1, 2, 4, 8, 11, 22, 44, 88. The factors of 33 are: 1, 3, 11, 33.
You got # out of # correct. Click the Retry button for another attempt.
You got a perfect score. Great job!