Q: Is 21,335,442 a Composite Number?

Why is 21,335,442 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 21,335,442 can be evenly divided by 1 2 3 6 17 19 34 38 51 57 101 102 109 114 202 218 303 323 327 606 646 654 969 1,717 1,853 1,919 1,938 2,071 3,434 3,706 3,838 4,142 5,151 5,559 5,757 6,213 10,302 11,009 11,118 11,514 12,426 22,018 32,623 33,027 35,207 65,246 66,054 70,414 97,869 105,621 187,153 195,738 209,171 211,242 374,306 418,342 561,459 627,513 1,122,918 1,255,026 3,555,907 7,111,814 10,667,721 and 21,335,442, with no remainder.

Since 21,335,442 cannot be divided by just 1 and 21,335,442, 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).