Q: Is 121,381 a Prime Number?
A: No, 121,381 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 121381 can be evenly divided by 1 13 9,337 and 121,381, with no remainder.
Since 121,381 cannot be divided by just 1 and 121,381, it is not a prime number.