Q: Is 1,090,431 a Prime Number?
A: No, 1,090,431 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 1090431 can be evenly divided by 1 3 9 17 51 153 7,127 21,381 64,143 121,159 363,477 and 1,090,431, with no remainder.
Since 1,090,431 cannot be divided by just 1 and 1,090,431, it is not a prime number.