Q: Is 81,420 a Composite Number?

 A: Yes, 81,420 is a composite number.

Why is 81,420 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 81,420 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 23 30 46 59 60 69 92 115 118 138 177 230 236 276 295 345 354 460 590 690 708 885 1,180 1,357 1,380 1,770 2,714 3,540 4,071 5,428 6,785 8,142 13,570 16,284 20,355 27,140 40,710 and 81,420, with no remainder.

Since 81,420 cannot be divided by just 1 and 81,420, it is a composite number.


More Examples

Number 81,41881,41981,42181,422
Composite? yesyesnoyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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