Prime factorization of:
195= 3 x 5 x 13
273= 3 x .....13 x 7
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GCF=3 x .....13
GCF=39
The GCF is: 91
The GCF is 65.
39, 78, 117, 156, 195, 234, 273, 312, 351, 390
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.
To find the LCM and gcf of the numbers write them in prime factorisation in power form. Then for the LCM take the highest power of every prime across the numbers, for the gcf take the lower power of every common prime, and multiply them together:195 = 3 x 5 x 13390 = 2 x 3 x 5 x 13LCM = 2 x 3 x 5 x 13 = 390gcf = 3 x 5 x 13 = 195but since 195 x 2 = 390LCM is 390gcf is 195easy peasy.
The GCF is 39.
The GCF is 1.
The GCF is 13.
The GCF for 195 and 105 is 15.
The GCF of 52 and 195 is 13The LCM of 52 and 195 is 780780 x 13 = 10,140The GCF is 13.
The GCF/HCF of 182 and 273 is 91.
The GCF is 1.
The GCF is: 91
564 142 2 2 71542 772 7 11The only common factors of 56 and 154 are 2 and 7, so their greatest common factor is the product of 2 and 7, 14.
The greatest common factor of 189 and 195 is 3.
The GCF is 5.
The GCF is 3.