12
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The greatest common factor of 156 , 40 = 4
The least common multiple of 180 and 156 is 2340. The greatest common factor is 12.
The GCF is 13.It is: 13
The GCF or GCD of those numbers is 12. The term GCD means greatest common divisor. However a divisor of a number is also called a factor, hence the term GCF instead.In this case 12x12=144and 12x13=156.
The sum of 120 and 36 is 156.