Q: Is 161,091 a Prime Number?
A: No, 161,091 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 161091 can be evenly divided by 1 3 7 9 21 63 2,557 7,671 17,899 23,013 53,697 and 161,091, with no remainder.
Since 161,091 cannot be divided by just 1 and 161,091, it is not a prime number.