Q: Is 155,520 a Composite Number?

Why is 155,520 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 155,520 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 128 135 144 160 162 180 192 216 240 243 270 288 320 324 360 384 405 432 480 486 540 576 640 648 720 810 864 960 972 1,080 1,152 1,215 1,296 1,440 1,620 1,728 1,920 1,944 2,160 2,430 2,592 2,880 3,240 3,456 3,888 4,320 4,860 5,184 5,760 6,480 7,776 8,640 9,720 10,368 12,960 15,552 17,280 19,440 25,920 31,104 38,880 51,840 77,760 and 155,520, with no remainder.

Since 155,520 cannot be divided by just 1 and 155,520, 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).