Q: Is 31,212,120 a Composite Number?

Why is 31,212,120 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 31,212,120 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 29 30 40 58 60 87 116 120 145 174 232 290 348 435 580 696 870 1,160 1,740 3,480 8,969 17,938 26,907 35,876 44,845 53,814 71,752 89,690 107,628 134,535 179,380 215,256 260,101 269,070 358,760 520,202 538,140 780,303 1,040,404 1,076,280 1,300,505 1,560,606 2,080,808 2,601,010 3,121,212 3,901,515 5,202,020 6,242,424 7,803,030 10,404,040 15,606,060 and 31,212,120, with no remainder.

Since 31,212,120 cannot be divided by just 1 and 31,212,120, 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).