Q: Is 28,107 a Prime Number?

A: No, 28,107 is not a prime number.

Why is 28,107 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 28107 can be evenly divided by 1 3 9 27 81 347 1,041 3,123 9,369 and 28,107, with no remainder.

Since 28,107 cannot be divided by just 1 and 28,107, it is not a prime number.

Number	28,105	28,106	28,108	28,109
Prime?	no	no	no	yes

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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