Q: Is 21,321,210 a Composite Number?

 A: Yes, 21,321,210 is a composite number.

Why is 21,321,210 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 21,321,210 can be evenly divided by 1 2 3 5 6 10 15 30 139 278 417 695 834 1,390 2,085 4,170 5,113 10,226 15,339 25,565 30,678 51,130 76,695 153,390 710,707 1,421,414 2,132,121 3,553,535 4,264,242 7,107,070 10,660,605 and 21,321,210, with no remainder.

Since 21,321,210 cannot be divided by just 1 and 21,321,210, it is a composite number.


More Examples

Number 21,321,20821,321,20921,321,21121,321,212
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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