Q: Is 161,191 a Prime Number?
A: No, 161,191 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 161191 can be evenly divided by 1 359 449 and 161,191, with no remainder.
Since 161,191 cannot be divided by just 1 and 161,191, it is not a prime number.