Q: Is 21,228,740 a Composite Number?

 A: Yes, 21,228,740 is a composite number.

Why is 21,228,740 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 21,228,740 can be evenly divided by 1 2 4 5 10 13 20 26 52 65 130 260 81,649 163,298 326,596 408,245 816,490 1,061,437 1,632,980 2,122,874 4,245,748 5,307,185 10,614,370 and 21,228,740, with no remainder.

Since 21,228,740 cannot be divided by just 1 and 21,228,740, it is a composite number.


More Examples

Number 21,228,73821,228,73921,228,74121,228,742
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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