To determine if 1409 is a prime number or a composite number, we simply look at the factors for 1409.
If the factors of 1409 are only 1409 and 1, then we know that 1409 is a prime number. Otherwise, 1409 is a composite number.
To explain better, if 1409 is only divisible by 1 and 1409, then it is a prime number, and if 1409 is divisible by more than 1409 and 1, then it is a composite number.
The factors of 1409 are as follows:
1, 1409
Therefore, since 1409 is divisible by only one and itself, the answer to the
question "Is 1409 prime or composite?" is highlighted in blue below.
prime
Is 1410 prime or composite?
OK. Now you know that 1409 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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