Step-by-step explanation:
1.)
30 = 2 x 3 x 5
10 = 2 x 5
GCF : 2 x 5 = 10
2.)
9 = 3 x 3
72 = 2 x 2 x 2 x 3 x 3
GCF : 3 x 3 = 9
3.)
24 = 2 x 2 x 2 x 3
40 = 2 x 2 x 2 x 5
GCF : 2 x 2 x 2 = 8
4.)
42 = 2 x 3 x 7
18 = 2 x 3 x 3
GCF : 2 x 3 = 6
5.)
15 = 3 x 5
45 = 3 x 3 x 5
GCF : 3 x 5 = 15
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Answers & Comments
Step-by-step explanation:
1.)
30 = 2 x 3 x 5
10 = 2 x 5
GCF : 2 x 5 = 10
2.)
9 = 3 x 3
72 = 2 x 2 x 2 x 3 x 3
GCF : 3 x 3 = 9
3.)
24 = 2 x 2 x 2 x 3
40 = 2 x 2 x 2 x 5
GCF : 2 x 2 x 2 = 8
4.)
42 = 2 x 3 x 7
18 = 2 x 3 x 3
GCF : 2 x 3 = 6
5.)
15 = 3 x 5
45 = 3 x 3 x 5
GCF : 3 x 5 = 15