Q: Is 1,998,438 a Prime Number?
A: No, 1,998,438 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 1998438 can be evenly divided by 1 2 3 6 13 26 39 78 25,621 51,242 76,863 153,726 333,073 666,146 999,219 and 1,998,438, with no remainder.
Since 1,998,438 cannot be divided by just 1 and 1,998,438, it is not a prime number.