To determine if 1872 is a prime number or a composite number, we simply look at the factors for 1872.
If the factors of 1872 are only 1872 and 1, then we know that 1872 is a prime number. Otherwise, 1872 is a composite number.
To explain better, if 1872 is only divisible by 1 and 1872, then it is a prime number, and if 1872 is divisible by more than 1872 and 1, then it is a composite number.
The factors of 1872 are as follows:
1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872
Therefore, since 1872 is divisible by more than one and itself, the answer to the
question "Is 1872 prime or composite?" is highlighted in blue below.
composite
Is 1873 prime or composite?
OK. Now you know that 1872 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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