Q: Is 987,721 a Prime Number?
A: No, 987,721 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 987721 can be evenly divided by 1 7 149 947 1,043 6,629 141,103 and 987,721, with no remainder.
Since 987,721 cannot be divided by just 1 and 987,721, it is not a prime number.