Q: Is 1,999,959 a Prime Number?
A: No, 1,999,959 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 1999959 can be evenly divided by 1 3 13 19 39 57 247 741 2,699 8,097 35,087 51,281 105,261 153,843 666,653 and 1,999,959, with no remainder.
Since 1,999,959 cannot be divided by just 1 and 1,999,959, it is not a prime number.