Q: Is 121,201,220 a Composite Number?

Why is 121,201,220 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 121,201,220 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 181 362 724 905 1,267 1,810 2,534 3,620 4,783 5,068 6,335 9,566 12,670 19,132 23,915 25,340 33,481 47,830 66,962 95,660 133,924 167,405 334,810 669,620 865,723 1,731,446 3,462,892 4,328,615 6,060,061 8,657,230 12,120,122 17,314,460 24,240,244 30,300,305 60,600,610 and 121,201,220, with no remainder.

Since 121,201,220 cannot be divided by just 1 and 121,201,220, 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).