Q: Is 121,945 a Prime Number?
A: No, 121,945 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 121945 can be evenly divided by 1 5 29 145 841 4,205 24,389 and 121,945, with no remainder.
Since 121,945 cannot be divided by just 1 and 121,945, it is not a prime number.