Q: Is 1,389,427 a Prime Number?
A: No, 1,389,427 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 1389427 can be evenly divided by 1 13 17 221 6,287 81,731 106,879 and 1,389,427, with no remainder.
Since 1,389,427 cannot be divided by just 1 and 1,389,427, it is not a prime number.