Q: Is 20,478 a Composite Number?
A: Yes, 20,478 is a composite number.
The number 20,478 can be evenly divided by 1 2 3 6 3,413 6,826 10,239 and 20,478, with no remainder.
Since 20,478 cannot be divided by just 1 and 20,478, it is a composite number.