Q: Is 21,579,072 a Composite Number?

Why is 21,579,072 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 21,579,072 can be evenly divided by 1 2 3 4 6 8 12 16 24 32 48 64 96 167 192 334 501 668 673 1,002 1,336 1,346 2,004 2,019 2,672 2,692 4,008 4,038 5,344 5,384 8,016 8,076 10,688 10,768 16,032 16,152 21,536 32,064 32,304 43,072 64,608 112,391 129,216 224,782 337,173 449,564 674,346 899,128 1,348,692 1,798,256 2,697,384 3,596,512 5,394,768 7,193,024 10,789,536 and 21,579,072, with no remainder.

Since 21,579,072 cannot be divided by just 1 and 21,579,072, 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).