Q: Is 1,721,200 a Composite Number?

Why is 1,721,200 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 1,721,200 can be evenly divided by 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 130 200 208 260 325 331 400 520 650 662 1,040 1,300 1,324 1,655 2,600 2,648 3,310 4,303 5,200 5,296 6,620 8,275 8,606 13,240 16,550 17,212 21,515 26,480 33,100 34,424 43,030 66,200 68,848 86,060 107,575 132,400 172,120 215,150 344,240 430,300 860,600 and 1,721,200, with no remainder.

Since 1,721,200 cannot be divided by just 1 and 1,721,200, 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).