Q: Is 1,620,800 a Composite Number?

Why is 1,620,800 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 1,620,800 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 160 200 320 400 800 1,013 1,600 2,026 4,052 5,065 8,104 10,130 16,208 20,260 25,325 32,416 40,520 50,650 64,832 81,040 101,300 162,080 202,600 324,160 405,200 810,400 and 1,620,800, with no remainder.

Since 1,620,800 cannot be divided by just 1 and 1,620,800, 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).