How to tell if a number is prime or composite

Question

Mathematics

Wayne Guerra

1 July, 21:24

How to tell if a number is prime or composite

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Answers (2)

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Jonas Nguyen · Answer 1

A prime number has only two factors: 1 and itself. A composite number has more than two factors. The number 1 is neither prime nor composite. The prime numbers between 2 and 31 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 and 31 since each of these numbers has only two factors, itself and 1.

Julissa Chapman · Answer 2

Prime numbers only have two factors, 1 and itself, and composite numbers have multiple factors.