Q: Is 21,426,040 a Composite Number?

 A: Yes, 21,426,040 is a composite number.

Why is 21,426,040 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 21,426,040 can be evenly divided by 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1,720 12,457 24,914 49,828 62,285 99,656 124,570 249,140 498,280 535,651 1,071,302 2,142,604 2,678,255 4,285,208 5,356,510 10,713,020 and 21,426,040, with no remainder.

Since 21,426,040 cannot be divided by just 1 and 21,426,040, it is a composite number.


More Examples

Number 21,426,03821,426,03921,426,04121,426,042
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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