Q: Is 122,721 a Prime Number?
A: No, 122,721 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 122721 can be evenly divided by 1 3 19 57 2,153 6,459 40,907 and 122,721, with no remainder.
Since 122,721 cannot be divided by just 1 and 122,721, it is not a prime number.