Q: Is 2,139,960 a Composite Number?

Why is 2,139,960 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 2,139,960 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 17 20 24 30 34 40 51 60 68 85 102 120 136 170 204 255 340 408 510 680 1,020 1,049 2,040 2,098 3,147 4,196 5,245 6,294 8,392 10,490 12,588 15,735 17,833 20,980 25,176 31,470 35,666 41,960 53,499 62,940 71,332 89,165 106,998 125,880 142,664 178,330 213,996 267,495 356,660 427,992 534,990 713,320 1,069,980 and 2,139,960, with no remainder.

Since 2,139,960 cannot be divided by just 1 and 2,139,960, 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).