Q: Is 728,728 a Composite Number?

Why is 728,728 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 728,728 can be evenly divided by 1 2 4 7 8 11 13 14 22 26 28 44 49 52 56 77 88 91 98 104 143 154 169 182 196 286 308 338 364 392 539 572 616 637 676 728 1,001 1,078 1,144 1,183 1,274 1,352 1,859 2,002 2,156 2,366 2,548 3,718 4,004 4,312 4,732 5,096 7,007 7,436 8,008 8,281 9,464 13,013 14,014 14,872 16,562 26,026 28,028 33,124 52,052 56,056 66,248 91,091 104,104 182,182 364,364 and 728,728, with no remainder.

Since 728,728 cannot be divided by just 1 and 728,728, 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).