Q: Is 28,725 a Prime Number?

A: No, 28,725 is not a prime number.

Why is 28,725 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 28725 can be evenly divided by 1 3 5 15 25 75 383 1,149 1,915 5,745 9,575 and 28,725, with no remainder.

Since 28,725 cannot be divided by just 1 and 28,725, it is not a prime number.

Number	28,723	28,724	28,726	28,727
Prime?	yes	no	no	no

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

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