what is the exponment of 14
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The GCF of a prime number and a composite number is 1 if the former is not a factor of the latter. 73 is a prime number and 18 is a composite number and 73 is not a factor of 18 because 18 is not divisible by 73. So, GCF(73, 18) = 1.
because it is not a prime number
1 and 2.
5 + 2 = 7
Since the number 7 is prime, and is not a factor of 18, the greatest common factor (GCF) of these three numbers is 1.