Answer:
12
Explanation:
listing the factors
12 : 1, 2, 3, 4, 6, 12
24 : 1, 2, 3, 4, 6, 8, 12, 24
36 : 1, 2, 3, 4, 6, 9, 12, 18, 36
The common factors are 1, 2, 3, 4, 6, 12
The GCF is 12
12 is the GCF..........
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