Q: Is 21,160,100 a Composite Number?

Why is 21,160,100 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 21,160,100 can be evenly divided by 1 2 4 5 10 13 20 25 26 41 50 52 65 82 100 130 164 205 260 325 397 410 533 650 794 820 1,025 1,066 1,300 1,588 1,985 2,050 2,132 2,665 3,970 4,100 5,161 5,330 7,940 9,925 10,322 10,660 13,325 16,277 19,850 20,644 25,805 26,650 32,554 39,700 51,610 53,300 65,108 81,385 103,220 129,025 162,770 211,601 258,050 325,540 406,925 423,202 516,100 813,850 846,404 1,058,005 1,627,700 2,116,010 4,232,020 5,290,025 10,580,050 and 21,160,100, with no remainder.

Since 21,160,100 cannot be divided by just 1 and 21,160,100, 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).