73 is prime.
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33 is a composite number as it can be divisible by 1, 3, 11, 33.
219 is a composite number. This is because composite numbers are any number that has more than two factors(one and itself). Therefore, since 3 and 73 are factors of 219 that makes it a composite number.
Its only factors are itself and one because 73 is a prime number
146 is not prime. 146 = 2 * 73