Q: Is 31,505,136 a Composite Number?

Why is 31,505,136 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 31,505,136 can be evenly divided by 1 2 3 4 6 8 12 13 16 24 26 29 39 48 52 58 78 87 104 116 156 174 208 232 312 348 377 464 624 696 754 1,131 1,392 1,508 1,741 2,262 3,016 3,482 4,524 5,223 6,032 6,964 9,048 10,446 13,928 18,096 20,892 22,633 27,856 41,784 45,266 50,489 67,899 83,568 90,532 100,978 135,798 151,467 181,064 201,956 271,596 302,934 362,128 403,912 543,192 605,868 656,357 807,824 1,086,384 1,211,736 1,312,714 1,969,071 2,423,472 2,625,428 3,938,142 5,250,856 7,876,284 10,501,712 15,752,568 and 31,505,136, with no remainder.

Since 31,505,136 cannot be divided by just 1 and 31,505,136, 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).