To determine if 1803 is a prime number or a composite number, we simply look at the factors for 1803.
If the factors of 1803 are only 1803 and 1, then we know that 1803 is a prime number. Otherwise, 1803 is a composite number.
To explain better, if 1803 is only divisible by 1 and 1803, then it is a prime number, and if 1803 is divisible by more than 1803 and 1, then it is a composite number.
The factors of 1803 are as follows:
1, 3, 601, 1803
Therefore, since 1803 is divisible by more than one and itself, the answer to the
question "Is 1803 prime or composite?" is highlighted in blue below.
composite
Is 1804 prime or composite?
OK. Now you know that 1803 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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