Q: Is 1,078,991 a Prime Number?
A: No, 1,078,991 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 1078991 can be evenly divided by 1 19 109 521 2,071 9,899 56,789 and 1,078,991, with no remainder.
Since 1,078,991 cannot be divided by just 1 and 1,078,991, it is not a prime number.