Q: Is 7,721,490 a Composite Number?

Why is 7,721,490 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 7,721,490 can be evenly divided by 1 2 3 5 6 7 10 14 15 21 30 35 42 70 83 105 166 210 249 415 443 498 581 830 886 1,162 1,245 1,329 1,743 2,215 2,490 2,658 2,905 3,101 3,486 4,430 5,810 6,202 6,645 8,715 9,303 13,290 15,505 17,430 18,606 31,010 36,769 46,515 73,538 93,030 110,307 183,845 220,614 257,383 367,690 514,766 551,535 772,149 1,103,070 1,286,915 1,544,298 2,573,830 3,860,745 and 7,721,490, with no remainder.

Since 7,721,490 cannot be divided by just 1 and 7,721,490, 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).