When finding the GCF of a set of numbers, firstly express each number as a product of its prime factors.
117 = 3 x 3 x 13
195 = 3 x 5 x 13
The factors that each number have in common are 3 and 13.
The Greatest Common Factor is therefore 3 x 13 = 39.
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The GCF is 65.
9
39, 78, 117, 195, 312 and 936 are divisible by three.
Prime factorization of: 195= 3 x 5 x 13 273= 3 x .....13 x 7 =============== GCF=3 x .....13 GCF=39
To find the Greatest Common Factor (GCF) of 52, 78, 91, and 117, we first need to find the prime factorization of each number. The prime factorization of 52 is 2^2 * 13, 78 is 2 * 3 * 13, 91 is 7 * 13, and 117 is 3^2 * 13. The common prime factors among these numbers are 13. Therefore, the GCF of 52, 78, 91, and 117 is 13.