Q: Is 280,560 a Composite Number?

Why is 280,560 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 280,560 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 167 168 210 240 280 334 336 420 501 560 668 835 840 1,002 1,169 1,336 1,670 1,680 2,004 2,338 2,505 2,672 3,340 3,507 4,008 4,676 5,010 5,845 6,680 7,014 8,016 9,352 10,020 11,690 13,360 14,028 17,535 18,704 20,040 23,380 28,056 35,070 40,080 46,760 56,112 70,140 93,520 140,280 and 280,560, with no remainder.

Since 280,560 cannot be divided by just 1 and 280,560, 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).