Q: Is 3,138,768 a Composite Number?

Why is 3,138,768 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 3,138,768 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 24 36 48 71 72 142 144 213 284 307 426 568 614 639 852 921 1,136 1,228 1,278 1,704 1,842 2,456 2,556 2,763 3,408 3,684 4,912 5,112 5,526 7,368 10,224 11,052 14,736 21,797 22,104 43,594 44,208 65,391 87,188 130,782 174,376 196,173 261,564 348,752 392,346 523,128 784,692 1,046,256 1,569,384 and 3,138,768, with no remainder.

Since 3,138,768 cannot be divided by just 1 and 3,138,768, 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).