Q: Is 422,420 a Prime Number?

A: No, 422,420 is not a prime number.

Why is 422,420 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 422420 can be evenly divided by 1 2 4 5 10 20 21,121 42,242 84,484 105,605 211,210 and 422,420, with no remainder.

Since 422,420 cannot be divided by just 1 and 422,420, it is not a prime number.

Number	422,418	422,419	422,421	422,422
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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