To determine if 2130 is a prime number or a composite number, we simply look at the factors for 2130.
If the factors of 2130 are only 2130 and 1, then we know that 2130 is a prime number. Otherwise, 2130 is a composite number.
To explain better, if 2130 is only divisible by 1 and 2130, then it is a prime number, and if 2130 is divisible by more than 2130 and 1, then it is a composite number.
The factors of 2130 are as follows:
1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130
Therefore, since 2130 is divisible by more than one and itself, the answer to the
question "Is 2130 prime or composite?" is highlighted in blue below.
composite
Is 2131 prime or composite?
OK. Now you know that 2130 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.
|
|
