Q: Is 221,961 a Prime Number?
A: No, 221,961 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 221961 can be evenly divided by 1 3 241 307 723 921 73,987 and 221,961, with no remainder.
Since 221,961 cannot be divided by just 1 and 221,961, it is not a prime number.