To determine if 406 is a prime number or a composite number, we simply look at the factors for 406.
If the factors of 406 are only 406 and 1, then we know that 406 is a prime number. Otherwise, 406 is a composite number.
To explain better, if 406 is only divisible by 1 and 406, then it is a prime number, and if 406 is divisible by more than 406 and 1, then it is a composite number.
The factors of 406 are as follows:
1, 2, 7, 14, 29, 58, 203, 406
Therefore, since 406 is divisible by more than one and itself, the answer to the
question "Is 406 prime or composite?" is highlighted in blue below.
composite
Is 407 prime or composite?
OK. Now you know that 406 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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