Q: Is 421,905 a Composite Number?

 A: Yes, 421,905 is a composite number.

Why is 421,905 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 421,905 can be evenly divided by 1 3 5 11 15 33 55 165 2,557 7,671 12,785 28,127 38,355 84,381 140,635 and 421,905, with no remainder.

Since 421,905 cannot be divided by just 1 and 421,905, it is a composite number.


More Examples

Number 421,903421,904421,906421,907
Composite? yesyesyesno
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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