To determine if 4045 is a prime number or a composite number, we simply look at the factors for 4045.
If the factors of 4045 are only 4045 and 1, then we know that 4045 is a prime number. Otherwise, 4045 is a composite number.
To explain better, if 4045 is only divisible by 1 and 4045, then it is a prime number, and if 4045 is divisible by more than 4045 and 1, then it is a composite number.
The factors of 4045 are as follows:
1, 5, 809, 4045
Therefore, since 4045 is divisible by more than one and itself, the answer to the
question "Is 4045 prime or composite?" is highlighted in blue below.
composite
Is 4046 prime or composite?
OK. Now you know that 4045 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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