Answer: 4
Explanation:
Factor of 48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
Factor of 100: 1, 2, 4, 5, 10, 20, 25, 50, 100
4 appears in both factors, so the GCF (Greatest Common Factor) will be 4
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