Q: Is 209,561 a Prime Number?
A: No, 209,561 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 209561 can be evenly divided by 1 11 19,051 and 209,561, with no remainder.
Since 209,561 cannot be divided by just 1 and 209,561, it is not a prime number.