To determine if 190 is a prime number or a composite number, we simply look at the factors for 190.
If the factors of 190 are only 190 and 1, then we know that 190 is a prime number. Otherwise, 190 is a composite number.
To explain better, if 190 is only divisible by 1 and 190, then it is a prime number, and if 190 is divisible by more than 190 and 1, then it is a composite number.
The factors of 190 are as follows:
1, 2, 5, 10, 19, 38, 95, 190
Therefore, since 190 is divisible by more than one and itself, the answer to the
question "Is 190 prime or composite?" is highlighted in blue below.
composite
Is 191 prime or composite?
OK. Now you know that 190 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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