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What is the GCF of 18 21 and 42?

Anonymous

∙ 10y ago

Updated: 9/20/2023

gcf(18, 21, 42) = 3.

18 = 2 x 3^2

21 = 3 x 7

24 = 2^3 x 3

hcf = 3

Wiki User

∙ 10y ago

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