Q: Is 197,721 a Prime Number?
A: No, 197,721 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 197721 can be evenly divided by 1 3 9 27 81 2,441 7,323 21,969 65,907 and 197,721, with no remainder.
Since 197,721 cannot be divided by just 1 and 197,721, it is not a prime number.