To determine if 2545 is a prime number or a composite number, we simply look at the factors for 2545.
If the factors of 2545 are only 2545 and 1, then we know that 2545 is a prime number. Otherwise, 2545 is a composite number.
To explain better, if 2545 is only divisible by 1 and 2545, then it is a prime number, and if 2545 is divisible by more than 2545 and 1, then it is a composite number.
The factors of 2545 are as follows:
1, 5, 509, 2545
Therefore, since 2545 is divisible by more than one and itself, the answer to the
question "Is 2545 prime or composite?" is highlighted in blue below.
composite
Is 2546 prime or composite?
OK. Now you know that 2545 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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