Q: Is 6,421,787 a Composite Number?
A: No, 6,421,787 is not a composite number; it is a prime number.
The number 6,421,787 can be evenly divided by 1 and 6,421,787, with no remainder.
Since 6,421,787 can be divided by just 1 and 6,421,787, it is not a composite number.