Q: Is 18,288,820 a Composite Number?

Why is 18,288,820 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 18,288,820 can be evenly divided by 1 2 4 5 10 11 20 22 44 55 59 110 118 220 236 295 590 649 1,180 1,298 1,409 2,596 2,818 3,245 5,636 6,490 7,045 12,980 14,090 15,499 28,180 30,998 61,996 77,495 83,131 154,990 166,262 309,980 332,524 415,655 831,310 914,441 1,662,620 1,828,882 3,657,764 4,572,205 9,144,410 and 18,288,820, with no remainder.

Since 18,288,820 cannot be divided by just 1 and 18,288,820, 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).