Q: Is 21,602,616 a Composite Number?

Why is 21,602,616 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 21,602,616 can be evenly divided by 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 149 168 298 447 596 863 894 1,043 1,192 1,726 1,788 2,086 2,589 3,129 3,452 3,576 4,172 5,178 6,041 6,258 6,904 8,344 10,356 12,082 12,516 18,123 20,712 24,164 25,032 36,246 48,328 72,492 128,587 144,984 257,174 385,761 514,348 771,522 900,109 1,028,696 1,543,044 1,800,218 2,700,327 3,086,088 3,600,436 5,400,654 7,200,872 10,801,308 and 21,602,616, with no remainder.

Since 21,602,616 cannot be divided by just 1 and 21,602,616, 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).