To determine if 7121 is a prime number or a composite number, we simply look at the factors for 7121.
If the factors of 7121 are only 7121 and 1, then we know that 7121 is a prime number. Otherwise, 7121 is a composite number.
To explain better, if 7121 is only divisible by 1 and 7121, then it is a prime number, and if 7121 is divisible by more than 7121 and 1, then it is a composite number.
The factors of 7121 are as follows:
1, 7121
Therefore, since 7121 is divisible by only one and itself, the answer to the
question "Is 7121 prime or composite?" is highlighted in blue below.
prime
Is 7122 prime or composite?
OK. Now you know that 7121 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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