To determine if 5781 is a prime number or a composite number, we simply look at the factors for 5781.
If the factors of 5781 are only 5781 and 1, then we know that 5781 is a prime number. Otherwise, 5781 is a composite number.
To explain better, if 5781 is only divisible by 1 and 5781, then it is a prime number, and if 5781 is divisible by more than 5781 and 1, then it is a composite number.
The factors of 5781 are as follows:
1, 3, 41, 47, 123, 141, 1927, 5781
Therefore, since 5781 is divisible by more than one and itself, the answer to the
question "Is 5781 prime or composite?" is highlighted in blue below.
composite
Is 5782 prime or composite?
OK. Now you know that 5781 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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