Q: Is 321,430 a Prime Number?

A: No, 321,430 is not a prime number.

Why is 321,430 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 321430 can be evenly divided by 1 2 5 10 32,143 64,286 160,715 and 321,430, with no remainder.

Since 321,430 cannot be divided by just 1 and 321,430, it is not a prime number.

Number	321,428	321,429	321,431	321,432
Prime?	no	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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