Q: Is 1,478,820 a Composite Number?

Why is 1,478,820 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 1,478,820 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 420 490 503 588 735 980 1,006 1,470 1,509 2,012 2,515 2,940 3,018 3,521 5,030 6,036 7,042 7,545 10,060 10,563 14,084 15,090 17,605 21,126 24,647 30,180 35,210 42,252 49,294 52,815 70,420 73,941 98,588 105,630 123,235 147,882 211,260 246,470 295,764 369,705 492,940 739,410 and 1,478,820, with no remainder.

Since 1,478,820 cannot be divided by just 1 and 1,478,820, 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).