To determine if 380 is a prime number or a composite number, we simply look at the factors for 380.
If the factors of 380 are only 380 and 1, then we know that 380 is a prime number. Otherwise, 380 is a composite number.
To explain better, if 380 is only divisible by 1 and 380, then it is a prime number, and if 380 is divisible by more than 380 and 1, then it is a composite number.
The factors of 380 are as follows:
1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380
Therefore, since 380 is divisible by more than one and itself, the answer to the
question "Is 380 prime or composite?" is highlighted in blue below.
composite
Is 381 prime or composite?
OK. Now you know that 380 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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