To determine if 3150 is a prime number or a composite number, we simply look at the factors for 3150.
If the factors of 3150 are only 3150 and 1, then we know that 3150 is a prime number. Otherwise, 3150 is a composite number.
To explain better, if 3150 is only divisible by 1 and 3150, then it is a prime number, and if 3150 is divisible by more than 3150 and 1, then it is a composite number.
The factors of 3150 are as follows:
1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150
Therefore, since 3150 is divisible by more than one and itself, the answer to the
question "Is 3150 prime or composite?" is highlighted in blue below.
composite
Is 3151 prime or composite?
OK. Now you know that 3150 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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