Q: Is 162,540 a Composite Number?

Why is 162,540 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 162,540 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 43 45 54 60 63 70 84 86 90 105 108 126 129 135 140 172 180 189 210 215 252 258 270 301 315 378 387 420 430 516 540 602 630 645 756 774 860 903 945 1,161 1,204 1,260 1,290 1,505 1,548 1,806 1,890 1,935 2,322 2,580 2,709 3,010 3,612 3,780 3,870 4,515 4,644 5,418 5,805 6,020 7,740 8,127 9,030 10,836 11,610 13,545 16,254 18,060 23,220 27,090 32,508 40,635 54,180 81,270 and 162,540, with no remainder.

Since 162,540 cannot be divided by just 1 and 162,540, 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).