Q: Is 813,540 a Composite Number?

Why is 813,540 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 813,540 can be evenly divided by 1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 35 39 42 52 60 65 70 78 84 91 105 130 140 149 156 182 195 210 260 273 298 364 390 420 447 455 546 596 745 780 894 910 1,043 1,092 1,365 1,490 1,788 1,820 1,937 2,086 2,235 2,730 2,980 3,129 3,874 4,172 4,470 5,215 5,460 5,811 6,258 7,748 8,940 9,685 10,430 11,622 12,516 13,559 15,645 19,370 20,860 23,244 27,118 29,055 31,290 38,740 40,677 54,236 58,110 62,580 67,795 81,354 116,220 135,590 162,708 203,385 271,180 406,770 and 813,540, with no remainder.

Since 813,540 cannot be divided by just 1 and 813,540, 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).