To determine if 1857 is a prime number or a composite number, we simply look at the factors for 1857.
If the factors of 1857 are only 1857 and 1, then we know that 1857 is a prime number. Otherwise, 1857 is a composite number.
To explain better, if 1857 is only divisible by 1 and 1857, then it is a prime number, and if 1857 is divisible by more than 1857 and 1, then it is a composite number.
The factors of 1857 are as follows:
1, 3, 619, 1857
Therefore, since 1857 is divisible by more than one and itself, the answer to the
question "Is 1857 prime or composite?" is highlighted in blue below.
composite
Is 1858 prime or composite?
OK. Now you know that 1857 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.
|
|
