Q: Is 2,221,920 a Composite Number?

Why is 2,221,920 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 2,221,920 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 1,543 3,086 4,629 6,172 7,715 9,258 12,344 13,887 15,430 18,516 23,145 24,688 27,774 30,860 37,032 46,290 49,376 55,548 61,720 69,435 74,064 92,580 111,096 123,440 138,870 148,128 185,160 222,192 246,880 277,740 370,320 444,384 555,480 740,640 1,110,960 and 2,221,920, with no remainder.

Since 2,221,920 cannot be divided by just 1 and 2,221,920, 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).