Q: Is 2,121,391 a Composite Number?
A: Yes, 2,121,391 is a composite number.
The number 2,121,391 can be evenly divided by 1 1,129 1,879 and 2,121,391, with no remainder.
Since 2,121,391 cannot be divided by just 1 and 2,121,391, it is a composite number.