Q: Is 1,166,409 a Prime Number?
A: No, 1,166,409 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 1166409 can be evenly divided by 1 3 9 29 41 87 109 123 261 327 369 981 1,189 3,161 3,567 4,469 9,483 10,701 13,407 28,449 40,221 129,601 388,803 and 1,166,409, with no remainder.
Since 1,166,409 cannot be divided by just 1 and 1,166,409, it is not a prime number.