Q: Is 2,221,440 a Composite Number?

Why is 2,221,440 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 2,221,440 can be evenly divided by 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 64 65 78 80 89 96 104 120 128 130 156 160 178 192 195 208 240 260 267 312 320 356 384 390 416 445 480 520 534 624 640 712 780 832 890 960 1,040 1,068 1,157 1,248 1,335 1,424 1,560 1,664 1,780 1,920 2,080 2,136 2,314 2,496 2,670 2,848 3,120 3,471 3,560 4,160 4,272 4,628 4,992 5,340 5,696 5,785 6,240 6,942 7,120 8,320 8,544 9,256 10,680 11,392 11,570 12,480 13,884 14,240 17,088 17,355 18,512 21,360 23,140 24,960 27,768 28,480 34,176 34,710 37,024 42,720 46,280 55,536 56,960 69,420 74,048 85,440 92,560 111,072 138,840 148,096 170,880 185,120 222,144 277,680 370,240 444,288 555,360 740,480 1,110,720 and 2,221,440, with no remainder.

Since 2,221,440 cannot be divided by just 1 and 2,221,440, 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).