Q: Is 13,578,540 a Composite Number?

Why is 13,578,540 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 13,578,540 can be evenly divided by 1 2 3 4 5 6 10 12 15 19 20 30 38 43 57 60 76 86 95 114 129 172 190 215 228 258 277 285 380 430 516 554 570 645 817 831 860 1,108 1,140 1,290 1,385 1,634 1,662 2,451 2,580 2,770 3,268 3,324 4,085 4,155 4,902 5,263 5,540 8,170 8,310 9,804 10,526 11,911 12,255 15,789 16,340 16,620 21,052 23,822 24,510 26,315 31,578 35,733 47,644 49,020 52,630 59,555 63,156 71,466 78,945 105,260 119,110 142,932 157,890 178,665 226,309 238,220 315,780 357,330 452,618 678,927 714,660 905,236 1,131,545 1,357,854 2,263,090 2,715,708 3,394,635 4,526,180 6,789,270 and 13,578,540, with no remainder.

Since 13,578,540 cannot be divided by just 1 and 13,578,540, 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).