Q: Is 201,721 a Prime Number?
A: No, 201,721 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 201721 can be evenly divided by 1 13 59 263 767 3,419 15,517 and 201,721, with no remainder.
Since 201,721 cannot be divided by just 1 and 201,721, it is not a prime number.