Q: Is 1,340,631 a Prime Number?
A: No, 1,340,631 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 1340631 can be evenly divided by 1 3 9 27 81 243 613 729 1,839 2,187 5,517 16,551 49,653 148,959 446,877 and 1,340,631, with no remainder.
Since 1,340,631 cannot be divided by just 1 and 1,340,631, it is not a prime number.