Q: Is 221,667 a Prime Number?
A: No, 221,667 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 221667 can be evenly divided by 1 3 37 111 1,997 5,991 73,889 and 221,667, with no remainder.
Since 221,667 cannot be divided by just 1 and 221,667, it is not a prime number.