54 and 72 are divisible by 2,3.
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54 is divisible by 2 and 3 which are prime numbers
If two prime number have a sum of 54 they cannot have a sum of 84, and conversely.
54 and 99 are not prime numbers because they have more than two factors.
No. 54 is only evenly divisible by these numbers: 1, 2, 3, 6, 9, 18, 27, 54.
Two prime numbers can have only one sum, not three different sums!