Q: Is 121,215 a Prime Number?
A: No, 121,215 is 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 121215 can be evenly divided by 1 3 5 15 8,081 24,243 40,405 and 121,215, with no remainder.
Since 121,215 cannot be divided by just 1 and 121,215, it is not a prime number.