To determine if 3819 is a prime number or a composite number, we simply look at the factors for 3819.
If the factors of 3819 are only 3819 and 1, then we know that 3819 is a prime number. Otherwise, 3819 is a composite number.
To explain better, if 3819 is only divisible by 1 and 3819, then it is a prime number, and if 3819 is divisible by more than 3819 and 1, then it is a composite number.
The factors of 3819 are as follows:
1, 3, 19, 57, 67, 201, 1273, 3819
Therefore, since 3819 is divisible by more than one and itself, the answer to the
question "Is 3819 prime or composite?" is highlighted in blue below.
composite
Is 3820 prime or composite?
OK. Now you know that 3819 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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