Q: Is 1,525,639 a Composite Number?
A: No, 1,525,639 is not a composite number; it is a prime number.
The number 1,525,639 can be evenly divided by 1 and 1,525,639, with no remainder.
Since 1,525,639 can be divided by just 1 and 1,525,639, it is not a composite number.