To determine if 197 is a prime number or a composite number, we simply look at the factors for 197.
If the factors of 197 are only 197 and 1, then we know that 197 is a prime number. Otherwise, 197 is a composite number.
To explain better, if 197 is only divisible by 1 and 197, then it is a prime number, and if 197 is divisible by more than 197 and 1, then it is a composite number.
The factors of 197 are as follows:
1, 197
Therefore, since 197 is divisible by only one and itself, the answer to the
question "Is 197 prime or composite?" is highlighted in blue below.
prime
Is 198 prime or composite?
OK. Now you know that 197 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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