To determine if 8430 is a prime number or a composite number, we simply look at the factors for 8430.
If the factors of 8430 are only 8430 and 1, then we know that 8430 is a prime number. Otherwise, 8430 is a composite number.
To explain better, if 8430 is only divisible by 1 and 8430, then it is a prime number, and if 8430 is divisible by more than 8430 and 1, then it is a composite number.
The factors of 8430 are as follows:
1, 2, 3, 5, 6, 10, 15, 30, 281, 562, 843, 1405, 1686, 2810, 4215, 8430
Therefore, since 8430 is divisible by more than one and itself, the answer to the
question "Is 8430 prime or composite?" is highlighted in blue below.
composite
Is 8431 prime or composite?
OK. Now you know that 8430 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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