Q: Is 1,578,091 a Composite Number?
A: No, 1,578,091 is not a composite number; it is a prime number.
The number 1,578,091 can be evenly divided by 1 and 1,578,091, with no remainder.
Since 1,578,091 can be divided by just 1 and 1,578,091, it is not a composite number.