Q: Is 1,399,437 a Prime Number?
A: No, 1,399,437 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 1399437 can be evenly divided by 1 3 9 13 27 39 81 117 243 351 443 1,053 1,329 3,159 3,987 5,759 11,961 17,277 35,883 51,831 107,649 155,493 466,479 and 1,399,437, with no remainder.
Since 1,399,437 cannot be divided by just 1 and 1,399,437, it is not a prime number.