Q: Is 21,123,320 a Composite Number?

 A: Yes, 21,123,320 is a composite number.

Why is 21,123,320 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 21,123,320 can be evenly divided by 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1,720 12,281 24,562 49,124 61,405 98,248 122,810 245,620 491,240 528,083 1,056,166 2,112,332 2,640,415 4,224,664 5,280,830 10,561,660 and 21,123,320, with no remainder.

Since 21,123,320 cannot be divided by just 1 and 21,123,320, it is a composite number.


More Examples

Number 21,123,31821,123,31921,123,32121,123,322
Composite? yesyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

Explore more about the number 21,123,320:


Ask a Question