Q: Is 221,749 a Prime Number?
A: No, 221,749 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 221749 can be evenly divided by 1 11 19 209 1,061 11,671 20,159 and 221,749, with no remainder.
Since 221,749 cannot be divided by just 1 and 221,749, it is not a prime number.