Q: Is 1,643,616 a Composite Number?

Why is 1,643,616 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 1,643,616 can be evenly divided by 1 2 3 4 6 8 9 12 13 16 18 24 26 32 36 39 48 52 72 78 96 104 117 144 156 208 234 288 312 416 439 468 624 878 936 1,248 1,317 1,756 1,872 2,634 3,512 3,744 3,951 5,268 5,707 7,024 7,902 10,536 11,414 14,048 15,804 17,121 21,072 22,828 31,608 34,242 42,144 45,656 51,363 63,216 68,484 91,312 102,726 126,432 136,968 182,624 205,452 273,936 410,904 547,872 821,808 and 1,643,616, with no remainder.

Since 1,643,616 cannot be divided by just 1 and 1,643,616, 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).