To determine if 1778 is a prime number or a composite number, we simply look at the factors for 1778.
If the factors of 1778 are only 1778 and 1, then we know that 1778 is a prime number. Otherwise, 1778 is a composite number.
To explain better, if 1778 is only divisible by 1 and 1778, then it is a prime number, and if 1778 is divisible by more than 1778 and 1, then it is a composite number.
The factors of 1778 are as follows:
1, 2, 7, 14, 127, 254, 889, 1778
Therefore, since 1778 is divisible by more than one and itself, the answer to the
question "Is 1778 prime or composite?" is highlighted in blue below.
composite
Is 1779 prime or composite?
OK. Now you know that 1778 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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