Q: Is 136,561 a Prime Number?
A: No, 136,561 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 136561 can be evenly divided by 1 17 29 277 493 4,709 8,033 and 136,561, with no remainder.
Since 136,561 cannot be divided by just 1 and 136,561, it is not a prime number.