If it has any more factors in addition to '1' and 3,072 then it's composite.
Just looking at it, we can see immediately that it's evenly divisible by 2, 3, and 4.
There may be others, but that's already more than we need in order to say that
it's definitely composite.
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4, composite. 67, prime.
Prime
1 is special 2 prime 3 prime 4 composite 5 prime 6 composite 7 prime 8 composite 9 composite 10 composite 11 prime 12 composite ext.
5 prime, 25 composite.
Composite