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Is 1643 prime or composite?


To determine if 1643 is a prime number or a composite number, we simply look at the factors for 1643.

If the factors of 1643 are only 1643 and 1, then we know that 1643 is a prime number. Otherwise, 1643 is a composite number.

To explain better, if 1643 is only divisible by 1 and 1643, then it is a prime number, and if 1643 is divisible by more than 1643 and 1, then it is a composite number.

The factors of 1643 are as follows:

1, 31, 53, 1643

Therefore, since 1643 is divisible by more than one and itself, the answer to the question "Is 1643 prime or composite?" is highlighted in blue below.

composite


Is 1644 prime or composite?
OK. Now you know that 1643 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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