To determine if 1525 is a prime number or a composite number, we simply look at the factors for 1525.
If the factors of 1525 are only 1525 and 1, then we know that 1525 is a prime number. Otherwise, 1525 is a composite number.
To explain better, if 1525 is only divisible by 1 and 1525, then it is a prime number, and if 1525 is divisible by more than 1525 and 1, then it is a composite number.
The factors of 1525 are as follows:
1, 5, 25, 61, 305, 1525
Therefore, since 1525 is divisible by more than one and itself, the answer to the
question "Is 1525 prime or composite?" is highlighted in blue below.
composite
Is 1526 prime or composite?
OK. Now you know that 1525 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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