Q: Is 640,091 a Composite Number?
A: Yes, 640,091 is a composite number.
The number 640,091 can be evenly divided by 1 19 59 571 1,121 10,849 33,689 and 640,091, with no remainder.
Since 640,091 cannot be divided by just 1 and 640,091, it is a composite number.