Q: Is 123,215 a Prime Number?

A: No, 123,215 is not a prime number.

Why is 123,215 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 123215 can be evenly divided by 1 5 19 95 1,297 6,485 24,643 and 123,215, with no remainder.

Since 123,215 cannot be divided by just 1 and 123,215, it is not a prime number.

Number	123,213	123,214	123,216	123,217
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