Q: Is 21,234,528 a Composite Number?

Why is 21,234,528 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 21,234,528 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 72 84 96 108 112 126 144 168 189 216 224 252 288 336 378 432 504 672 756 864 1,008 1,512 2,016 3,024 3,511 6,048 7,022 10,533 14,044 21,066 24,577 28,088 31,599 42,132 49,154 56,176 63,198 73,731 84,264 94,797 98,308 112,352 126,396 147,462 168,528 189,594 196,616 221,193 252,792 294,924 337,056 379,188 393,232 442,386 505,584 589,848 663,579 758,376 786,464 884,772 1,011,168 1,179,696 1,327,158 1,516,752 1,769,544 2,359,392 2,654,316 3,033,504 3,539,088 5,308,632 7,078,176 10,617,264 and 21,234,528, with no remainder.

Since 21,234,528 cannot be divided by just 1 and 21,234,528, 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).