To determine if 205 is a prime number or a composite number, we simply look at the factors for 205.
If the factors of 205 are only 205 and 1, then we know that 205 is a prime number. Otherwise, 205 is a composite number.
To explain better, if 205 is only divisible by 1 and 205, then it is a prime number, and if 205 is divisible by more than 205 and 1, then it is a composite number.
The factors of 205 are as follows:
1, 5, 41, 205
Therefore, since 205 is divisible by more than one and itself, the answer to the
question "Is 205 prime or composite?" is highlighted in blue below.
composite
Is 206 prime or composite?
OK. Now you know that 205 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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