Q: Is 21,368,376 a Composite Number?

Why is 21,368,376 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 21,368,376 can be evenly divided by 1 2 3 4 6 8 9 12 18 24 36 72 463 641 926 1,282 1,389 1,852 1,923 2,564 2,778 3,704 3,846 4,167 5,128 5,556 5,769 7,692 8,334 11,112 11,538 15,384 16,668 23,076 33,336 46,152 296,783 593,566 890,349 1,187,132 1,780,698 2,374,264 2,671,047 3,561,396 5,342,094 7,122,792 10,684,188 and 21,368,376, with no remainder.

Since 21,368,376 cannot be divided by just 1 and 21,368,376, 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).