Q: Is 978,421 a Prime Number?

A: No, 978,421 is not a prime number.

Why is 978,421 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 978421 can be evenly divided by 1 139 7,039 and 978,421, with no remainder.

Since 978,421 cannot be divided by just 1 and 978,421, it is not a prime number.

Number	978,419	978,420	978,422	978,423
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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