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The GCF of 126 and 189 is 63.
The easiest way to solve this is by breaking down 126 and 189 into a series of prime numbers multiplied together. 126 = 2*(3^2)*7, and 189 = (3^3)*7
So taking the minimum powers on each side will give you the GCF.
Thus GCD(126,189) = (2^0)*(3^2)*(7^1)= 1*9*7 = 63.
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What is the greatest common factor of 189 and 441?
The adjective "greatest" is a superlative. What hat means is that there can be only one. There cannot be two greatest common factors.The greatest common factor of 189 and 441 IS 63.
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