Q: Is 1,398,789 a Prime Number?
A: No, 1,398,789 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 1398789 can be evenly divided by 1 3 7 9 21 27 63 81 189 567 2,467 7,401 17,269 22,203 51,807 66,609 155,421 199,827 466,263 and 1,398,789, with no remainder.
Since 1,398,789 cannot be divided by just 1 and 1,398,789, it is not a prime number.