To determine if 1519 is a prime number or a composite number, we simply look at the factors for 1519.
If the factors of 1519 are only 1519 and 1, then we know that 1519 is a prime number. Otherwise, 1519 is a composite number.
To explain better, if 1519 is only divisible by 1 and 1519, then it is a prime number, and if 1519 is divisible by more than 1519 and 1, then it is a composite number.
The factors of 1519 are as follows:
1, 7, 31, 49, 217, 1519
Therefore, since 1519 is divisible by more than one and itself, the answer to the
question "Is 1519 prime or composite?" is highlighted in blue below.
composite
Is 1520 prime or composite?
OK. Now you know that 1519 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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