Q: Is 121,212 a Composite Number?

Why is 121,212 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 121,212 can be evenly divided by 1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 37 39 42 52 63 74 78 84 91 111 117 126 148 156 182 222 234 252 259 273 333 364 444 468 481 518 546 666 777 819 962 1,036 1,092 1,332 1,443 1,554 1,638 1,924 2,331 2,886 3,108 3,276 3,367 4,329 4,662 5,772 6,734 8,658 9,324 10,101 13,468 17,316 20,202 30,303 40,404 60,606 and 121,212, with no remainder.

Since 121,212 cannot be divided by just 1 and 121,212, 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).