Q: Is 20,153,560 a Composite Number?

Why is 20,153,560 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 20,153,560 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 167 280 334 431 668 835 862 1,169 1,336 1,670 1,724 2,155 2,338 3,017 3,340 3,448 4,310 4,676 5,845 6,034 6,680 8,620 9,352 11,690 12,068 15,085 17,240 23,380 24,136 30,170 46,760 60,340 71,977 120,680 143,954 287,908 359,885 503,839 575,816 719,770 1,007,678 1,439,540 2,015,356 2,519,195 2,879,080 4,030,712 5,038,390 10,076,780 and 20,153,560, with no remainder.

Since 20,153,560 cannot be divided by just 1 and 20,153,560, 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).