Q: Is 21,731,020 a Composite Number?

 A: Yes, 21,731,020 is a composite number.

Why is 21,731,020 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 21,731,020 can be evenly divided by 1 2 4 5 10 20 431 862 1,724 2,155 2,521 4,310 5,042 8,620 10,084 12,605 25,210 50,420 1,086,551 2,173,102 4,346,204 5,432,755 10,865,510 and 21,731,020, with no remainder.

Since 21,731,020 cannot be divided by just 1 and 21,731,020, it is a composite number.


More Examples

Number 21,731,01821,731,01921,731,02121,731,022
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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