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What is the greatest common factor of 18 and 24? [#permalink]
We need to find The greatest common factor (GCF) of 18 and 24

Lets solve it using two methods

Method 1: Prime Factorization

18 = 2*3*3 = \(2^1 * 3^2\)
24 = 3*8 = \(2^3 * 3^1\)

To find the GCF take all the common terms and take their lowest power in all of the above.

=> GCF(18,24) = \(2^1 * 3^1\) = 6

So, Answer will be C

Method 2: Common Division Method

6 | 18, 24
-----------
__| 3 , 4

=> GCF = Product of Common factors = 6

So, Answer will be C
Hope it helps!

To learn more about LCM and GCD watch the following videos



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What is the greatest common factor of 18 and 24? [#permalink]
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