Q: Is 1,003,431 a Prime Number?
A: No, 1,003,431 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 1003431 can be evenly divided by 1 3 11 13 33 39 143 429 2,339 7,017 25,729 30,407 77,187 91,221 334,477 and 1,003,431, with no remainder.
Since 1,003,431 cannot be divided by just 1 and 1,003,431, it is not a prime number.