To determine if 490 is a prime number or a composite number, we simply look at the factors for 490.
If the factors of 490 are only 490 and 1, then we know that 490 is a prime number. Otherwise, 490 is a composite number.
To explain better, if 490 is only divisible by 1 and 490, then it is a prime number, and if 490 is divisible by more than 490 and 1, then it is a composite number.
The factors of 490 are as follows:
1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
Therefore, since 490 is divisible by more than one and itself, the answer to the
question "Is 490 prime or composite?" is highlighted in blue below.
composite
Is 491 prime or composite?
OK. Now you know that 490 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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