To determine if 1825 is a prime number or a composite number, we simply look at the factors for 1825.
If the factors of 1825 are only 1825 and 1, then we know that 1825 is a prime number. Otherwise, 1825 is a composite number.
To explain better, if 1825 is only divisible by 1 and 1825, then it is a prime number, and if 1825 is divisible by more than 1825 and 1, then it is a composite number.
The factors of 1825 are as follows:
1, 5, 25, 73, 365, 1825
Therefore, since 1825 is divisible by more than one and itself, the answer to the
question "Is 1825 prime or composite?" is highlighted in blue below.
composite
Is 1826 prime or composite?
OK. Now you know that 1825 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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