Q: Is 170,640 a Composite Number?

Why is 170,640 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 170,640 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 79 80 90 108 120 135 144 158 180 216 237 240 270 316 360 395 432 474 540 632 711 720 790 948 1,080 1,185 1,264 1,422 1,580 1,896 2,133 2,160 2,370 2,844 3,160 3,555 3,792 4,266 4,740 5,688 6,320 7,110 8,532 9,480 10,665 11,376 14,220 17,064 18,960 21,330 28,440 34,128 42,660 56,880 85,320 and 170,640, with no remainder.

Since 170,640 cannot be divided by just 1 and 170,640, 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).