To determine if 3140 is a prime number or a composite number, we simply look at the factors for 3140.
If the factors of 3140 are only 3140 and 1, then we know that 3140 is a prime number. Otherwise, 3140 is a composite number.
To explain better, if 3140 is only divisible by 1 and 3140, then it is a prime number, and if 3140 is divisible by more than 3140 and 1, then it is a composite number.
The factors of 3140 are as follows:
1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140
Therefore, since 3140 is divisible by more than one and itself, the answer to the
question "Is 3140 prime or composite?" is highlighted in blue below.
composite
Is 3141 prime or composite?
OK. Now you know that 3140 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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