Q: Is 121,731 a Prime Number?
A: No, 121,731 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 121731 can be evenly divided by 1 3 40,577 and 121,731, with no remainder.
Since 121,731 cannot be divided by just 1 and 121,731, it is not a prime number.