Q: Is 1,868,724 a Composite Number?

Why is 1,868,724 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 1,868,724 can be evenly divided by 1 2 3 4 6 9 11 12 13 18 22 26 27 33 36 39 44 52 54 66 78 99 108 117 121 132 143 156 198 234 242 286 297 351 363 396 429 468 484 572 594 702 726 858 1,089 1,188 1,287 1,331 1,404 1,452 1,573 1,716 2,178 2,574 2,662 3,146 3,267 3,861 3,993 4,356 4,719 5,148 5,324 6,292 6,534 7,722 7,986 9,438 11,979 13,068 14,157 15,444 15,972 17,303 18,876 23,958 28,314 34,606 35,937 42,471 47,916 51,909 56,628 69,212 71,874 84,942 103,818 143,748 155,727 169,884 207,636 311,454 467,181 622,908 934,362 and 1,868,724, with no remainder.

Since 1,868,724 cannot be divided by just 1 and 1,868,724, 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).