Q: Is 221,473 a Prime Number?
A: No, 221,473 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 221473 can be evenly divided by 1 7 29 203 1,091 7,637 31,639 and 221,473, with no remainder.
Since 221,473 cannot be divided by just 1 and 221,473, it is not a prime number.