Q: Is 2,809,240 a Composite Number?

Why is 2,809,240 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 2,809,240 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 79 127 140 158 254 280 316 395 508 553 632 635 790 889 1,016 1,106 1,270 1,580 1,778 2,212 2,540 2,765 3,160 3,556 4,424 4,445 5,080 5,530 7,112 8,890 10,033 11,060 17,780 20,066 22,120 35,560 40,132 50,165 70,231 80,264 100,330 140,462 200,660 280,924 351,155 401,320 561,848 702,310 1,404,620 and 2,809,240, with no remainder.

Since 2,809,240 cannot be divided by just 1 and 2,809,240, 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).