To determine if 2100 is a prime number or a composite number, we simply look at the factors for 2100.
If the factors of 2100 are only 2100 and 1, then we know that 2100 is a prime number. Otherwise, 2100 is a composite number.
To explain better, if 2100 is only divisible by 1 and 2100, then it is a prime number, and if 2100 is divisible by more than 2100 and 1, then it is a composite number.
The factors of 2100 are as follows:
1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100
Therefore, since 2100 is divisible by more than one and itself, the answer to the
question "Is 2100 prime or composite?" is highlighted in blue below.
composite
Is 2101 prime or composite?
OK. Now you know that 2100 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.
|
|
