To determine if 1445 is a prime number or a composite number, we simply look at the factors for 1445.
If the factors of 1445 are only 1445 and 1, then we know that 1445 is a prime number. Otherwise, 1445 is a composite number.
To explain better, if 1445 is only divisible by 1 and 1445, then it is a prime number, and if 1445 is divisible by more than 1445 and 1, then it is a composite number.
The factors of 1445 are as follows:
1, 5, 17, 85, 289, 1445
Therefore, since 1445 is divisible by more than one and itself, the answer to the
question "Is 1445 prime or composite?" is highlighted in blue below.
composite
Is 1446 prime or composite?
OK. Now you know that 1445 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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