Q: Is 128,576 a Composite Number?

Why is 128,576 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 128,576 can be evenly divided by 1 2 4 7 8 14 16 28 32 41 49 56 64 82 98 112 164 196 224 287 328 392 448 574 656 784 1,148 1,312 1,568 2,009 2,296 2,624 3,136 4,018 4,592 8,036 9,184 16,072 18,368 32,144 64,288 and 128,576, with no remainder.

Since 128,576 cannot be divided by just 1 and 128,576, 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).