To determine if 343 is a prime number or a composite number, we simply look at the factors for 343.
If the factors of 343 are only 343 and 1, then we know that 343 is a prime number. Otherwise, 343 is a composite number.
To explain better, if 343 is only divisible by 1 and 343, then it is a prime number, and if 343 is divisible by more than 343 and 1, then it is a composite number.
The factors of 343 are as follows:
1, 7, 49, 343
Therefore, since 343 is divisible by more than one and itself, the answer to the
question "Is 343 prime or composite?" is highlighted in blue below.
composite
Is 344 prime or composite?
OK. Now you know that 343 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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