list the factors of each number in each set and determine the coommon factor
1. 30_____
10_____
2. 24_____
10_____
3. 15_____
45_____
4. 9 ______
72______
5. 43______
18______
1. 30_____
10_____
2. 24_____
10_____
3. 15_____
45_____
4. 9 ______
72______
5. 43______
18______
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Answer:
1. 30 - 1, 2, 3, 5, 6, 10, 15, 30,
10 - 1, 2, 5, 10
Common Factors: 1, 2, 5, 10
2. 24 - 1, 2, 3, 4, 6, 8, 12, 24
10 - 1, 2, 5, 10
Common Factors: 1, 2
3. 15 - 1, 3, 5, 15
45- 1, 3, 5, 9, 15, 45
Common Factors: 1, 3, 5, 15
4. 9 - 1, 3, 9
72 - 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36
Common Factors: 1, 3, 9
5. 43 - 1, 43
18 - 1, 2, 3, 6, 9, 18
Common Factor: 1
Answer:
1. 1, 2, 3, 5, 10, 15, and 30
2. 1, and 2
3. 1, 3, 5, and 15
4. 9, 3, and 1
5. 1