Q: Is 647,136 a Composite Number?

Why is 647,136 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 647,136 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 72 84 96 107 108 112 126 144 168 189 214 216 224 252 288 321 336 378 428 432 504 642 672 749 756 856 864 963 1,008 1,284 1,498 1,512 1,712 1,926 2,016 2,247 2,568 2,889 2,996 3,024 3,424 3,852 4,494 5,136 5,778 5,992 6,048 6,741 7,704 8,988 10,272 11,556 11,984 13,482 15,408 17,976 20,223 23,112 23,968 26,964 30,816 35,952 40,446 46,224 53,928 71,904 80,892 92,448 107,856 161,784 215,712 323,568 and 647,136, with no remainder.

Since 647,136 cannot be divided by just 1 and 647,136, 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).