Q: Is 221,908 a Prime Number?
A: No, 221,908 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 221908 can be evenly divided by 1 2 4 29 58 116 1,913 3,826 7,652 55,477 110,954 and 221,908, with no remainder.
Since 221,908 cannot be divided by just 1 and 221,908, it is not a prime number.