Q: Is 209,961 a Prime Number?
A: No, 209,961 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 209961 can be evenly divided by 1 3 9 41 123 369 569 1,707 5,121 23,329 69,987 and 209,961, with no remainder.
Since 209,961 cannot be divided by just 1 and 209,961, it is not a prime number.