The Greatest Common Factor of 12, 16, 24: 4
Write the prime composition of the numbers in power form and take the lowest power of each prime across all the numbers; if a prime does not exist in a number, its power in that number is zero (any number to the power zero is 1):
12: 2^2 x 3^1
16: 2^4
24: 2^3 x 3^1
gcf = 2^2 x 3^0
= 4 x 1
= 4
It is 8
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greatest common factor of 12 16 24 is 4.