Question

Find the gcf 15, 18, 30
a. 450
b. 540
c. 6
d. 3

Answer 1

Factors of 15 - 1, 3, 5, 15
Factors of 18 - 1, 2, 3, 6, 9, 18
Factors of 30 - 1, 2, 3, 5, 6, 10, 15, 30

Your answer is D

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