54 is not prime.
54 = 2 * 3 * 3 * 3
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no, because 54 factors are 1, 2, 6, 9, 27, 54 so, 54 is composite a prime number is only divisible by itself and one
54 = 2 * 3 * 3 * 3
54 is a composite number because it has more than 2 factors
54 is a composite number, not prime, because 2, 3, and 6 also go into it.
The greatest common factor of 54 and 99 is 9, which is not prime. The greatest common factor of 80 and 114 is 2, which is prime.