Q: Is 3,121,608 a Composite Number?

Why is 3,121,608 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 3,121,608 can be evenly divided by 1 2 3 4 6 7 8 12 14 17 21 24 28 34 42 51 56 68 84 102 119 136 168 204 238 357 408 476 714 952 1,093 1,428 2,186 2,856 3,279 4,372 6,558 7,651 8,744 13,116 15,302 18,581 22,953 26,232 30,604 37,162 45,906 55,743 61,208 74,324 91,812 111,486 130,067 148,648 183,624 222,972 260,134 390,201 445,944 520,268 780,402 1,040,536 1,560,804 and 3,121,608, with no remainder.

Since 3,121,608 cannot be divided by just 1 and 3,121,608, 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).