To determine if 1228 is a prime number or a composite number, we simply look at the factors for 1228.
If the factors of 1228 are only 1228 and 1, then we know that 1228 is a prime number. Otherwise, 1228 is a composite number.
To explain better, if 1228 is only divisible by 1 and 1228, then it is a prime number, and if 1228 is divisible by more than 1228 and 1, then it is a composite number.
The factors of 1228 are as follows:
1, 2, 4, 307, 614, 1228
Therefore, since 1228 is divisible by more than one and itself, the answer to the
question "Is 1228 prime or composite?" is highlighted in blue below.
composite
Is 1229 prime or composite?
OK. Now you know that 1228 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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