To determine if 1664 is a prime number or a composite number, we simply look at the factors for 1664.
If the factors of 1664 are only 1664 and 1, then we know that 1664 is a prime number. Otherwise, 1664 is a composite number.
To explain better, if 1664 is only divisible by 1 and 1664, then it is a prime number, and if 1664 is divisible by more than 1664 and 1, then it is a composite number.
The factors of 1664 are as follows:
1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664
Therefore, since 1664 is divisible by more than one and itself, the answer to the
question "Is 1664 prime or composite?" is highlighted in blue below.
composite
Is 1665 prime or composite?
OK. Now you know that 1664 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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