Q: Is 1,620,360 a Composite Number?

Why is 1,620,360 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 1,620,360 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 90 105 120 126 140 168 180 210 252 280 315 360 420 504 630 643 840 1,260 1,286 1,929 2,520 2,572 3,215 3,858 4,501 5,144 5,787 6,430 7,716 9,002 9,645 11,574 12,860 13,503 15,432 18,004 19,290 22,505 23,148 25,720 27,006 28,935 36,008 38,580 40,509 45,010 46,296 54,012 57,870 67,515 77,160 81,018 90,020 108,024 115,740 135,030 162,036 180,040 202,545 231,480 270,060 324,072 405,090 540,120 810,180 and 1,620,360, with no remainder.

Since 1,620,360 cannot be divided by just 1 and 1,620,360, 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).