Q: Is 285,120 a Composite Number?

Why is 285,120 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 285,120 can be evenly divided by 1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 27 30 32 33 36 40 44 45 48 54 55 60 64 66 72 80 81 88 90 96 99 108 110 120 132 135 144 160 162 165 176 180 192 198 216 220 240 264 270 288 297 320 324 330 352 360 396 405 432 440 480 495 528 540 576 594 648 660 704 720 792 810 864 880 891 960 990 1,056 1,080 1,188 1,296 1,320 1,440 1,485 1,584 1,620 1,728 1,760 1,782 1,980 2,112 2,160 2,376 2,592 2,640 2,880 2,970 3,168 3,240 3,520 3,564 3,960 4,320 4,455 4,752 5,184 5,280 5,940 6,336 6,480 7,128 7,920 8,640 8,910 9,504 10,560 11,880 12,960 14,256 15,840 17,820 19,008 23,760 25,920 28,512 31,680 35,640 47,520 57,024 71,280 95,040 142,560 and 285,120, with no remainder.

Since 285,120 cannot be divided by just 1 and 285,120, 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).