18 is a composite number having the factors 1, 2, 3, 6, 9, and 18. The composite numbers that are factors of 18 are 6, 9, and 18.
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18 (All even numbers except 2 are composite.)
The composite numbers between 10 and 20 are 12, 14, 15, 16 and 18.
The composite numbers between 11 and 19 are 12, 14, 15, 16 and 18
Composite numbers.Example: 17- factors of 17...1 and 17- This is a prime number.Example: 18- factors of 18...1,2,3,6,9,18- This is a composite number.
12,14,15,16, and 18