To determine if 2143 is a prime number or a composite number, we simply look at the factors for 2143.
If the factors of 2143 are only 2143 and 1, then we know that 2143 is a prime number. Otherwise, 2143 is a composite number.
To explain better, if 2143 is only divisible by 1 and 2143, then it is a prime number, and if 2143 is divisible by more than 2143 and 1, then it is a composite number.
The factors of 2143 are as follows:
1, 2143
Therefore, since 2143 is divisible by only one and itself, the answer to the
question "Is 2143 prime or composite?" is highlighted in blue below.
prime
Is 2144 prime or composite?
OK. Now you know that 2143 is a prime 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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