Q: Is 123,005 a Prime Number?

A: No, 123,005 is not a prime number.

Why is 123,005 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 123005 can be evenly divided by 1 5 73 337 365 1,685 24,601 and 123,005, with no remainder.

Since 123,005 cannot be divided by just 1 and 123,005, it is not a prime number.

Number	123,003	123,004	123,006	123,007
Prime?	no	no	no	yes

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

General Questions

Factoring Questions

Calculation Questions

Miscellaneous Questions