Q: Is 21,240,420 a Composite Number?

 A: Yes, 21,240,420 is a composite number.

Why is 21,240,420 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 21,240,420 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 354,007 708,014 1,062,021 1,416,028 1,770,035 2,124,042 3,540,070 4,248,084 5,310,105 7,080,140 10,620,210 and 21,240,420, with no remainder.

Since 21,240,420 cannot be divided by just 1 and 21,240,420, it is a composite number.


More Examples

Number 21,240,41821,240,41921,240,42121,240,422
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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