Q: Is 7,215,840 a Composite Number?

Why is 7,215,840 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 7,215,840 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1,440 5,011 10,022 15,033 20,044 25,055 30,066 40,088 45,099 50,110 60,132 75,165 80,176 90,198 100,220 120,264 150,330 160,352 180,396 200,440 225,495 240,528 300,660 360,792 400,880 450,990 481,056 601,320 721,584 801,760 901,980 1,202,640 1,443,168 1,803,960 2,405,280 3,607,920 and 7,215,840, with no remainder.

Since 7,215,840 cannot be divided by just 1 and 7,215,840, 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).