Q: Is 1,061,991 a Prime Number?
A: No, 1,061,991 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 1061991 can be evenly divided by 1 3 7 9 21 27 63 81 189 567 1,873 5,619 13,111 16,857 39,333 50,571 117,999 151,713 353,997 and 1,061,991, with no remainder.
Since 1,061,991 cannot be divided by just 1 and 1,061,991, it is not a prime number.