Q: Is 401,403 a Prime Number?

A: No, 401,403 is not a prime number.

Why is 401,403 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 401403 can be evenly divided by 1 3 133,801 and 401,403, with no remainder.

Since 401,403 cannot be divided by just 1 and 401,403, it is not a prime number.

Number	401,401	401,402	401,404	401,405
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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