To determine if 2011 is a prime number or a composite number, we simply look at the factors for 2011.
If the factors of 2011 are only 2011 and 1, then we know that 2011 is a prime number. Otherwise, 2011 is a composite number.
To explain better, if 2011 is only divisible by 1 and 2011, then it is a prime number, and if 2011 is divisible by more than 2011 and 1, then it is a composite number.
The factors of 2011 are as follows:
1, 2011
Therefore, since 2011 is divisible by only one and itself, the answer to the
question "Is 2011 prime or composite?" is highlighted in blue below.
prime
Is 2012 prime or composite?
OK. Now you know that 2011 is a prime 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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