The GCF is 10.
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To find the Greatest Common Factor (GCF) of 20, 30, and 90, you first need to factor each number into its prime factors. The prime factorization of 20 is 2^2 * 5, of 30 is 2 * 3 * 5, and of 90 is 2 * 3^2 * 5. Then, you identify the common prime factors among the numbers, which are 2 and 5. Finally, you multiply these common prime factors together to find the GCF, which is 2 * 5 = 10.
gcf(20, 30, 90) = 10
30The gcf is 30
The GCF is 30.
Prime factorization of 32 = 2x2x2x2x2 Prime factorization of 90 = 2x3x3x5 Prime factorization of 30 = 2x3x5 What is common in the prime factorization of the numbers? Only 2 is common, so GCF is 2.
The GCF is 3.