Q: Is 221,616 a Composite Number?

Why is 221,616 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 221,616 can be evenly divided by 1 2 3 4 6 8 9 12 16 18 19 24 27 36 38 48 54 57 72 76 81 108 114 144 152 162 171 216 228 243 304 324 342 432 456 486 513 648 684 729 912 972 1,026 1,296 1,368 1,458 1,539 1,944 2,052 2,736 2,916 3,078 3,888 4,104 4,617 5,832 6,156 8,208 9,234 11,664 12,312 13,851 18,468 24,624 27,702 36,936 55,404 73,872 110,808 and 221,616, with no remainder.

Since 221,616 cannot be divided by just 1 and 221,616, 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).