To determine if 619 is a prime number or a composite number, we simply look at the factors for 619.
If the factors of 619 are only 619 and 1, then we know that 619 is a prime number. Otherwise, 619 is a composite number.
To explain better, if 619 is only divisible by 1 and 619, then it is a prime number, and if 619 is divisible by more than 619 and 1, then it is a composite number.
The factors of 619 are as follows:
1, 619
Therefore, since 619 is divisible by only one and itself, the answer to the
question "Is 619 prime or composite?" is highlighted in blue below.
prime
Is 620 prime or composite?
OK. Now you know that 619 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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