Q: Is 128,421 a Composite Number?

 A: Yes, 128,421 is a composite number.

Why is 128,421 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 128,421 can be evenly divided by 1 3 9 19 57 171 751 2,253 6,759 14,269 42,807 and 128,421, with no remainder.

Since 128,421 cannot be divided by just 1 and 128,421, it is a composite number.


More Examples

Number 128,419128,420128,422128,423
Composite? yesyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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