Q: Is 111,409 a Prime Number?

A: Yes, 111,409 is a prime number.

Why is 111,409 a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 111409 can be evenly divided by 1 and 111,409, with no remainder.

Since 111,409 can be divided by just 1 and 111,409, it is a prime number.

Number	111,407	111,408	111,410	111,411
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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