Q: Is 21,240,300 a Composite Number?

Why is 21,240,300 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 21,240,300 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 101 150 202 300 303 404 505 606 701 1,010 1,212 1,402 1,515 2,020 2,103 2,525 2,804 3,030 3,505 4,206 5,050 6,060 7,010 7,575 8,412 10,100 10,515 14,020 15,150 17,525 21,030 30,300 35,050 42,060 52,575 70,100 70,801 105,150 141,602 210,300 212,403 283,204 354,005 424,806 708,010 849,612 1,062,015 1,416,020 1,770,025 2,124,030 3,540,050 4,248,060 5,310,075 7,080,100 10,620,150 and 21,240,300, with no remainder.

Since 21,240,300 cannot be divided by just 1 and 21,240,300, 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).