The least common factor is: 1
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The least common multiple of two numbers is their product divided by their greatest common factor. Since 7 is a prime number and 27 is not a multiple of 7, their greatest common factor is 1. The least common multiple is 7 x 27 ÷ 1 = 189.
the answer is 3
216 24*9 = 216 27*8 = 216
The GCF is 3.
The GCF is 27. The LCM is 81.