Q: Is 21,343,740 a Composite Number?

Why is 21,343,740 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 21,343,740 can be evenly divided by 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 73 110 132 146 165 219 220 292 330 365 438 443 660 730 803 876 886 1,095 1,329 1,460 1,606 1,772 2,190 2,215 2,409 2,658 3,212 4,015 4,380 4,430 4,818 4,873 5,316 6,645 8,030 8,860 9,636 9,746 12,045 13,290 14,619 16,060 19,492 24,090 24,365 26,580 29,238 32,339 48,180 48,730 58,476 64,678 73,095 97,017 97,460 129,356 146,190 161,695 194,034 292,380 323,390 355,729 388,068 485,085 646,780 711,458 970,170 1,067,187 1,422,916 1,778,645 1,940,340 2,134,374 3,557,290 4,268,748 5,335,935 7,114,580 10,671,870 and 21,343,740, with no remainder.

Since 21,343,740 cannot be divided by just 1 and 21,343,740, 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).