Q: Is 309,825 a Composite Number?

 A: Yes, 309,825 is a composite number.

Why is 309,825 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 309,825 can be evenly divided by 1 3 5 9 15 17 25 27 45 51 75 81 85 135 153 225 243 255 405 425 459 675 729 765 1,215 1,275 1,377 2,025 2,295 3,645 3,825 4,131 6,075 6,885 11,475 12,393 18,225 20,655 34,425 61,965 103,275 and 309,825, with no remainder.

Since 309,825 cannot be divided by just 1 and 309,825, it is a composite number.


More Examples

Number 309,823309,824309,826309,827
Composite? noyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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