Q: Is 121,309 a Prime Number?
A: Yes, 121,309 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 121309 can be evenly divided by 1 and 121,309, with no remainder.
Since 121,309 can be divided by just 1 and 121,309, it is a prime number.