Q: Is 72,161 a Prime Number?
A: Yes, 72,161 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 72161 can be evenly divided by 1 and 72,161, with no remainder.
Since 72,161 can be divided by just 1 and 72,161, it is a prime number.