Q: Is 21,458,682 a Composite Number?

Why is 21,458,682 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 21,458,682 can be evenly divided by 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 127 149 162 189 254 298 378 381 447 567 762 889 894 1,043 1,134 1,143 1,341 1,778 2,086 2,286 2,667 2,682 3,129 3,429 4,023 5,334 6,258 6,858 8,001 8,046 9,387 10,287 12,069 16,002 18,774 18,923 20,574 24,003 24,138 28,161 37,846 48,006 56,322 56,769 72,009 84,483 113,538 132,461 144,018 168,966 170,307 264,922 340,614 397,383 510,921 794,766 1,021,842 1,192,149 1,532,763 2,384,298 3,065,526 3,576,447 7,152,894 10,729,341 and 21,458,682, with no remainder.

Since 21,458,682 cannot be divided by just 1 and 21,458,682, 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).