1,4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,27,28,30,32,33,34,35,36,38,39,40,42,44,45,46,48,49,50,51,52,54,55,56,57,58,60,62,63,64,65,66,68,69,70,72,74,75,76,77,78,80,81,82,84,85,86,876,88,90,91,92,93,94,95,96,98,99,100
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They are all the numbers that have only two factors which are themselves and one whereas composite numbers have more than two factors.
Not all composite numbers are even, but all even numbers except 2 are composite.
They are all composite.
there are infinity odd composite numbers
The numbers in the 90s are all composite, apart from 97, which is prime.