To determine if 2561 is a prime number or a composite number, we simply look at the factors for 2561.
If the factors of 2561 are only 2561 and 1, then we know that 2561 is a prime number. Otherwise, 2561 is a composite number.
To explain better, if 2561 is only divisible by 1 and 2561, then it is a prime number, and if 2561 is divisible by more than 2561 and 1, then it is a composite number.
The factors of 2561 are as follows:
1, 13, 197, 2561
Therefore, since 2561 is divisible by more than one and itself, the answer to the
question "Is 2561 prime or composite?" is highlighted in blue below.
composite
Is 2562 prime or composite?
OK. Now you know that 2561 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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