Q: Is 21,911,904 a Composite Number?

Why is 21,911,904 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 21,911,904 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 72 84 96 108 112 126 144 168 189 216 224 252 288 336 378 432 504 672 756 864 1,008 1,512 2,016 3,024 3,623 6,048 7,246 10,869 14,492 21,738 25,361 28,984 32,607 43,476 50,722 57,968 65,214 76,083 86,952 97,821 101,444 115,936 130,428 152,166 173,904 195,642 202,888 228,249 260,856 304,332 347,808 391,284 405,776 456,498 521,712 608,664 684,747 782,568 811,552 912,996 1,043,424 1,217,328 1,369,494 1,565,136 1,825,992 2,434,656 2,738,988 3,130,272 3,651,984 5,477,976 7,303,968 10,955,952 and 21,911,904, with no remainder.

Since 21,911,904 cannot be divided by just 1 and 21,911,904, 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).