Q: Is 279,972 a Composite Number?

Why is 279,972 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 279,972 can be evenly divided by 1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 63 66 77 84 99 101 126 132 154 198 202 231 252 303 308 396 404 462 606 693 707 909 924 1,111 1,212 1,386 1,414 1,818 2,121 2,222 2,772 2,828 3,333 3,636 4,242 4,444 6,363 6,666 7,777 8,484 9,999 12,726 13,332 15,554 19,998 23,331 25,452 31,108 39,996 46,662 69,993 93,324 139,986 and 279,972, with no remainder.

Since 279,972 cannot be divided by just 1 and 279,972, 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).