It's divisible by three, since the sum of its digits is divisible by three. So it's composite.
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It is a composite number.
153 is composite. Its factors are 1, 3, 9, 17, 51, 153.
To find a composite number, think of two numbers that can be multiplied to equal that number. For example, 15 is a composite number because its factors are 1, 3, 5 and 15. For a number to be composite, it should have more than two factors.To know 15 is a composite number, know:1 x 15=153 x 5 =15All composite numbers have more than two factors whereas prime numbers have only two factors.
It is a composite number.
It is a composite number.