To determine if 784 is a prime number or a composite number, we simply look at the factors for 784.
If the factors of 784 are only 784 and 1, then we know that 784 is a prime number. Otherwise, 784 is a composite number.
To explain better, if 784 is only divisible by 1 and 784, then it is a prime number, and if 784 is divisible by more than 784 and 1, then it is a composite number.
The factors of 784 are as follows:
1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
Therefore, since 784 is divisible by more than one and itself, the answer to the
question "Is 784 prime or composite?" is highlighted in blue below.
composite
Is 785 prime or composite?
OK. Now you know that 784 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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