Q: Is 426,423 a Prime Number?

A: No, 426,423 is not a prime number.

Why is 426,423 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 426423 can be evenly divided by 1 3 307 463 921 1,389 142,141 and 426,423, with no remainder.

Since 426,423 cannot be divided by just 1 and 426,423, it is not a prime number.

Number	426,421	426,422	426,424	426,425
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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