To determine if 1100 is a prime number or a composite number, we simply look at the factors for 1100.
If the factors of 1100 are only 1100 and 1, then we know that 1100 is a prime number. Otherwise, 1100 is a composite number.
To explain better, if 1100 is only divisible by 1 and 1100, then it is a prime number, and if 1100 is divisible by more than 1100 and 1, then it is a composite number.
The factors of 1100 are as follows:
1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100
Therefore, since 1100 is divisible by more than one and itself, the answer to the
question "Is 1100 prime or composite?" is highlighted in blue below.
composite
Is 1101 prime or composite?
OK. Now you know that 1100 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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