Q: Is 21,214,648 a Composite Number?

Why is 21,214,648 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 21,214,648 can be evenly divided by 1 2 4 7 8 13 14 23 26 28 46 49 52 56 91 92 98 104 161 181 182 184 196 299 322 362 364 392 598 637 644 724 728 1,127 1,196 1,267 1,274 1,288 1,448 2,093 2,254 2,353 2,392 2,534 2,548 4,163 4,186 4,508 4,706 5,068 5,096 8,326 8,372 8,869 9,016 9,412 10,136 14,651 16,471 16,652 16,744 17,738 18,824 29,141 29,302 32,942 33,304 35,476 54,119 58,282 58,604 65,884 70,952 108,238 115,297 116,564 117,208 131,768 203,987 216,476 230,594 233,128 378,833 407,974 432,952 461,188 757,666 815,948 922,376 1,515,332 1,631,896 2,651,831 3,030,664 5,303,662 10,607,324 and 21,214,648, with no remainder.

Since 21,214,648 cannot be divided by just 1 and 21,214,648, 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).