Q: Is 1,540,140 a Composite Number?

Why is 1,540,140 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 1,540,140 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 42 57 60 70 76 84 95 105 114 133 140 190 193 210 228 266 285 380 386 399 420 532 570 579 665 772 798 965 1,140 1,158 1,330 1,351 1,596 1,930 1,995 2,316 2,660 2,702 2,895 3,667 3,860 3,990 4,053 5,404 5,790 6,755 7,334 7,980 8,106 11,001 11,580 13,510 14,668 16,212 18,335 20,265 22,002 25,669 27,020 36,670 40,530 44,004 51,338 55,005 73,340 77,007 81,060 102,676 110,010 128,345 154,014 220,020 256,690 308,028 385,035 513,380 770,070 and 1,540,140, with no remainder.

Since 1,540,140 cannot be divided by just 1 and 1,540,140, 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).