Q: Is 83,721 a Prime Number?
A: No, 83,721 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 83721 can be evenly divided by 1 3 11 33 43 59 129 177 473 649 1,419 1,947 2,537 7,611 27,907 and 83,721, with no remainder.
Since 83,721 cannot be divided by just 1 and 83,721, it is not a prime number.