Q: Is 6,439,728 a Composite Number?
A: Yes, 6,439,728 is a composite number.
The number 6,439,728 can be evenly divided by 1 2 3 4 6 8 12 16 24 48 134,161 268,322 402,483 536,644 804,966 1,073,288 1,609,932 2,146,576 3,219,864 and 6,439,728, with no remainder.
Since 6,439,728 cannot be divided by just 1 and 6,439,728, it is a composite number.