Q: Is 285,090 a Composite Number?

Why is 285,090 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 285,090 can be evenly divided by 1 2 3 5 6 10 13 15 17 26 30 34 39 43 51 65 78 85 86 102 129 130 170 195 215 221 255 258 390 430 442 510 559 645 663 731 1,105 1,118 1,290 1,326 1,462 1,677 2,193 2,210 2,795 3,315 3,354 3,655 4,386 5,590 6,630 7,310 8,385 9,503 10,965 16,770 19,006 21,930 28,509 47,515 57,018 95,030 142,545 and 285,090, with no remainder.

Since 285,090 cannot be divided by just 1 and 285,090, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).