Q: Is 55,221 a Prime Number?
A: No, 55,221 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 55221 can be evenly divided by 1 3 79 233 237 699 18,407 and 55,221, with no remainder.
Since 55,221 cannot be divided by just 1 and 55,221, it is not a prime number.