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What is the gcf of 7 21 18?

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Anonymous

∙ 9y ago
Updated: 8/21/2019

The GCF is 1.

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Wiki User

∙ 9y ago
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Related Questions

What is the LCM and the GCF of 18 and 21?

To make this easier, let's first factor 18 and 21 into their prime factors: 18=2*3^2 21=3*7 Now it's very easy to find the LCM and GCF. The LCM is 2*3^2*7=126, and the GCF is 3.


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gcf(18, 21, 42) = 3. 18 = 2 x 3^2 21 = 3 x 7 24 = 2^3 x 3 hcf = 3


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