To determine if 3210 is a prime number or a composite number, we simply look at the factors for 3210.
If the factors of 3210 are only 3210 and 1, then we know that 3210 is a prime number. Otherwise, 3210 is a composite number.
To explain better, if 3210 is only divisible by 1 and 3210, then it is a prime number, and if 3210 is divisible by more than 3210 and 1, then it is a composite number.
The factors of 3210 are as follows:
1, 2, 3, 5, 6, 10, 15, 30, 107, 214, 321, 535, 642, 1070, 1605, 3210
Therefore, since 3210 is divisible by more than one and itself, the answer to the
question "Is 3210 prime or composite?" is highlighted in blue below.
composite
Is 3211 prime or composite?
OK. Now you know that 3210 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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