Q: Is 21,210 a Composite Number?

 A: Yes, 21,210 is a composite number.

Why is 21,210 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 21,210 can be evenly divided by 1 2 3 5 6 7 10 14 15 21 30 35 42 70 101 105 202 210 303 505 606 707 1,010 1,414 1,515 2,121 3,030 3,535 4,242 7,070 10,605 and 21,210, with no remainder.

Since 21,210 cannot be divided by just 1 and 21,210, it is a composite number.


More Examples

Number 21,20821,20921,21121,212
Composite? yesyesnoyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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