Q: Is 1,231,816 a Prime Number?
A: No, 1,231,816 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 1231816 can be evenly divided by 1 2 4 8 31 62 124 248 4,967 9,934 19,868 39,736 153,977 307,954 615,908 and 1,231,816, with no remainder.
Since 1,231,816 cannot be divided by just 1 and 1,231,816, it is not a prime number.