To determine if 43 is a prime number or a composite number, we simply look at the factors for 43.
If the factors of 43 are only 43 and 1, then we know that 43 is a prime number. Otherwise, 43 is a composite number.
To explain better, if 43 is only divisible by 1 and 43, then it is a prime number, and if 43 is divisible by more than 43 and 1, then it is a composite number.
The factors of 43 are as follows:
1, 43
Therefore, since 43 is divisible by only one and itself, the answer to the
question "Is 43 prime or composite?" is highlighted in blue below.
prime
Is 44 prime or composite?
OK. Now you know that 43 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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