To determine if 402 is a prime number or a composite number, we simply look at the factors for 402.
If the factors of 402 are only 402 and 1, then we know that 402 is a prime number. Otherwise, 402 is a composite number.
To explain better, if 402 is only divisible by 1 and 402, then it is a prime number, and if 402 is divisible by more than 402 and 1, then it is a composite number.
The factors of 402 are as follows:
1, 2, 3, 6, 67, 134, 201, 402
Therefore, since 402 is divisible by more than one and itself, the answer to the
question "Is 402 prime or composite?" is highlighted in blue below.
composite
Is 403 prime or composite?
OK. Now you know that 402 is a composite number. Use our logic above and see if
you can figure out if the next number on our list is prime or composite before you check your answer.
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