Q: Is 320,040 a Composite Number?

Why is 320,040 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 320,040 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 45 56 60 63 70 72 84 90 105 120 126 127 140 168 180 210 252 254 280 315 360 381 420 504 508 630 635 762 840 889 1,016 1,143 1,260 1,270 1,524 1,778 1,905 2,286 2,520 2,540 2,667 3,048 3,556 3,810 4,445 4,572 5,080 5,334 5,715 7,112 7,620 8,001 8,890 9,144 10,668 11,430 13,335 15,240 16,002 17,780 21,336 22,860 26,670 32,004 35,560 40,005 45,720 53,340 64,008 80,010 106,680 160,020 and 320,040, with no remainder.

Since 320,040 cannot be divided by just 1 and 320,040, 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).