Q: Is 428,875 a Prime Number?

A: No, 428,875 is not a prime number.

Why is 428,875 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 428875 can be evenly divided by 1 5 25 47 73 125 235 365 1,175 1,825 3,431 5,875 9,125 17,155 85,775 and 428,875, with no remainder.

Since 428,875 cannot be divided by just 1 and 428,875, it is not a prime number.

Number	428,873	428,874	428,876	428,877
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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