To determine if 1500 is a prime number or a composite number, we simply look at the factors for 1500.
If the factors of 1500 are only 1500 and 1, then we know that 1500 is a prime number. Otherwise, 1500 is a composite number.
To explain better, if 1500 is only divisible by 1 and 1500, then it is a prime number, and if 1500 is divisible by more than 1500 and 1, then it is a composite number.
The factors of 1500 are as follows:
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 750, 1500
Therefore, since 1500 is divisible by more than one and itself, the answer to the
question "Is 1500 prime or composite?" is highlighted in blue below.
composite
Is 1501 prime or composite?
OK. Now you know that 1500 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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