Q: Is 1,440,180 a Composite Number?

Why is 1,440,180 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 1,440,180 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 45 54 60 63 70 81 84 90 105 108 126 127 135 140 162 180 189 210 252 254 270 315 324 378 381 405 420 508 540 567 630 635 756 762 810 889 945 1,134 1,143 1,260 1,270 1,524 1,620 1,778 1,890 1,905 2,268 2,286 2,540 2,667 2,835 3,429 3,556 3,780 3,810 4,445 4,572 5,334 5,670 5,715 6,858 7,620 8,001 8,890 10,287 10,668 11,340 11,430 13,335 13,716 16,002 17,145 17,780 20,574 22,860 24,003 26,670 32,004 34,290 40,005 41,148 48,006 51,435 53,340 68,580 72,009 80,010 96,012 102,870 120,015 144,018 160,020 205,740 240,030 288,036 360,045 480,060 720,090 and 1,440,180, with no remainder.

Since 1,440,180 cannot be divided by just 1 and 1,440,180, 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).