Q: Is 17,721,240 a Composite Number?

Why is 17,721,240 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 17,721,240 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 20 24 30 40 59 60 118 120 177 236 295 354 472 590 708 885 1,180 1,416 1,770 2,360 2,503 3,540 5,006 7,080 7,509 10,012 12,515 15,018 20,024 25,030 30,036 37,545 50,060 60,072 75,090 100,120 147,677 150,180 295,354 300,360 443,031 590,708 738,385 886,062 1,181,416 1,476,770 1,772,124 2,215,155 2,953,540 3,544,248 4,430,310 5,907,080 8,860,620 and 17,721,240, with no remainder.

Since 17,721,240 cannot be divided by just 1 and 17,721,240, 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).