Q: Is 1,220,000 a Composite Number?

Why is 1,220,000 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 1,220,000 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 61 80 100 122 125 160 200 244 250 305 400 488 500 610 625 800 976 1,000 1,220 1,250 1,525 1,952 2,000 2,440 2,500 3,050 4,000 4,880 5,000 6,100 7,625 9,760 10,000 12,200 15,250 20,000 24,400 30,500 38,125 48,800 61,000 76,250 122,000 152,500 244,000 305,000 610,000 and 1,220,000, with no remainder.

Since 1,220,000 cannot be divided by just 1 and 1,220,000, 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).