Q: Is 221,009 a Prime Number?
A: No, 221,009 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 221009 can be evenly divided by 1 29 7,621 and 221,009, with no remainder.
Since 221,009 cannot be divided by just 1 and 221,009, it is not a prime number.