Q: Is 43,139 a Prime Number?
A: No, 43,139 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 43139 can be evenly divided by 1 179 241 and 43,139, with no remainder.
Since 43,139 cannot be divided by just 1 and 43,139, it is not a prime number.