Each number is half the previous number.
The GCF is 15.
15 30 45 60 75
Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30.Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.Factors of 75: 1, 3, 5, 15, 25, 75.GCF (30, 60, 75) = 15
Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30.Factors of 75: 1, 3, 5, 15, 25, 75.Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.GCF (30, 75, 60) = 15
15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, . . .
15
15
the answer is 15
15, 30, 45, 60, 75, 90, 105, 120,135,15015, 30, 45, 60, 75, 90, 105, 120, 135, 150.
15, 30, 45, 60, 75, 90,
The GCF is 15.
15, 30, 45, 60, 75 and so on.