Q: Is 1,811,940 a Composite Number?

Why is 1,811,940 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 1,811,940 can be evenly divided by 1 2 3 4 5 6 10 12 13 15 20 23 26 30 39 46 52 60 65 69 78 92 101 115 130 138 156 195 202 230 260 276 299 303 345 390 404 460 505 598 606 690 780 897 1,010 1,196 1,212 1,313 1,380 1,495 1,515 1,794 2,020 2,323 2,626 2,990 3,030 3,588 3,939 4,485 4,646 5,252 5,980 6,060 6,565 6,969 7,878 8,970 9,292 11,615 13,130 13,938 15,756 17,940 19,695 23,230 26,260 27,876 30,199 34,845 39,390 46,460 60,398 69,690 78,780 90,597 120,796 139,380 150,995 181,194 301,990 362,388 452,985 603,980 905,970 and 1,811,940, with no remainder.

Since 1,811,940 cannot be divided by just 1 and 1,811,940, 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).