Q: Is 2,127,870 a Composite Number?

Why is 2,127,870 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 2,127,870 can be evenly divided by 1 2 3 5 6 9 10 15 18 27 30 37 45 54 71 74 81 90 111 135 142 162 185 213 222 270 333 355 370 405 426 555 639 666 710 810 999 1,065 1,110 1,278 1,665 1,917 1,998 2,130 2,627 2,997 3,195 3,330 3,834 4,995 5,254 5,751 5,994 6,390 7,881 9,585 9,990 11,502 13,135 14,985 15,762 19,170 23,643 26,270 28,755 29,970 39,405 47,286 57,510 70,929 78,810 118,215 141,858 212,787 236,430 354,645 425,574 709,290 1,063,935 and 2,127,870, with no remainder.

Since 2,127,870 cannot be divided by just 1 and 2,127,870, 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).