Q: Is 261,091 a Prime Number?
A: No, 261,091 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 261091 can be evenly divided by 1 157 1,663 and 261,091, with no remainder.
Since 261,091 cannot be divided by just 1 and 261,091, it is not a prime number.