Q: Is 125,991 a Prime Number?
A: No, 125,991 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 125991 can be evenly divided by 1 3 9 13,999 41,997 and 125,991, with no remainder.
Since 125,991 cannot be divided by just 1 and 125,991, it is not a prime number.