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What is the greatest common factor of 12n and 18?
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To find the GCF of two numbers: 1. List the prime factors of each number. 2. Multiply those factors both numbers have in common. If there are no common prime factors, the GCF is 1.
So 12n=2*2*3*n right?
18 is 2*3*3
The prime numbers they share are 2 and 3.
Multiply 2 and 3 and you get 6. GCF=6 IF n=/=3. If n=3 then GCF is?
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2*3*3=18. In fact GCF=18 if n is a multiple of 3. GCF is 6 if n is not a multiple of 3.
dam you can reply fast
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