Q: Is 221,279 a Prime Number?
A: No, 221,279 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 221279 can be evenly divided by 1 79 2,801 and 221,279, with no remainder.
Since 221,279 cannot be divided by just 1 and 221,279, it is not a prime number.