Q: Is 165,240 a Composite Number?

Why is 165,240 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 165,240 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 27 30 34 36 40 45 51 54 60 68 72 81 85 90 102 108 120 135 136 153 162 170 180 204 216 243 255 270 306 324 340 360 405 408 459 486 510 540 612 648 680 765 810 918 972 1,020 1,080 1,215 1,224 1,377 1,530 1,620 1,836 1,944 2,040 2,295 2,430 2,754 3,060 3,240 3,672 4,131 4,590 4,860 5,508 6,120 6,885 8,262 9,180 9,720 11,016 13,770 16,524 18,360 20,655 27,540 33,048 41,310 55,080 82,620 and 165,240, with no remainder.

Since 165,240 cannot be divided by just 1 and 165,240, 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).