The first composite number is 4.
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The first 6 composite numbers are 4, 6, 8, 9, 10, and 12.
The set of composite numbers includes all whole numbers greater than 1 that are not prime numbers. The first few composite numbers are 2, 4, 6, 8, 11, 13, etc.
120
The first 12 composite numbers are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, and 21.
The first eight composite numbers are 4, 6, 8, 9, 10, 12, 14, and 15.