To determine if 1745 is a prime number or a composite number, we simply look at the factors for 1745.
If the factors of 1745 are only 1745 and 1, then we know that 1745 is a prime number. Otherwise, 1745 is a composite number.
To explain better, if 1745 is only divisible by 1 and 1745, then it is a prime number, and if 1745 is divisible by more than 1745 and 1, then it is a composite number.
The factors of 1745 are as follows:
1, 5, 349, 1745
Therefore, since 1745 is divisible by more than one and itself, the answer to the
question "Is 1745 prime or composite?" is highlighted in blue below.
composite
Is 1746 prime or composite?
OK. Now you know that 1745 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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