Which is a prime number
60
67
65
63

Use the rule of divisibility :
60 is composite because it is even so it can be divided by 2
67 is prime because none if the divisiblility rules work on it
65 is composite because it has a five by the end which means it can be divided by 5
63 is composite because the sum of the digits equal to nine which can be divided by 3 and nine

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