Q: Is 21,102,072 a Composite Number?

Why is 21,102,072 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 21,102,072 can be evenly divided by 1 2 3 4 6 8 12 24 31 62 93 113 124 186 226 248 251 339 372 452 502 678 744 753 904 1,004 1,356 1,506 2,008 2,712 3,012 3,503 6,024 7,006 7,781 10,509 14,012 15,562 21,018 23,343 28,024 28,363 31,124 42,036 46,686 56,726 62,248 84,072 85,089 93,372 113,452 170,178 186,744 226,904 340,356 680,712 879,253 1,758,506 2,637,759 3,517,012 5,275,518 7,034,024 10,551,036 and 21,102,072, with no remainder.

Since 21,102,072 cannot be divided by just 1 and 21,102,072, 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).