Q: Is 31,780 a Composite Number?

 A: Yes, 31,780 is a composite number.

Why is 31,780 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 31,780 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 227 454 908 1,135 1,589 2,270 3,178 4,540 6,356 7,945 15,890 and 31,780, with no remainder.

Since 31,780 cannot be divided by just 1 and 31,780, it is a composite number.


More Examples

Number 31,77831,77931,78131,782
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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