Q: Is 401,421 a Prime Number?

A: No, 401,421 is not a prime number.

Why is 401,421 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 401421 can be evenly divided by 1 3 17 51 289 463 867 1,389 7,871 23,613 133,807 and 401,421, with no remainder.

Since 401,421 cannot be divided by just 1 and 401,421, it is not a prime number.

Number	401,419	401,420	401,422	401,423
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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