To determine if 650 is a prime number or a composite number, we simply look at the factors for 650.
If the factors of 650 are only 650 and 1, then we know that 650 is a prime number. Otherwise, 650 is a composite number.
To explain better, if 650 is only divisible by 1 and 650, then it is a prime number, and if 650 is divisible by more than 650 and 1, then it is a composite number.
The factors of 650 are as follows:
1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650
Therefore, since 650 is divisible by more than one and itself, the answer to the
question "Is 650 prime or composite?" is highlighted in blue below.
composite
Is 651 prime or composite?
OK. Now you know that 650 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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