Q: Is 321,220,000 a Composite Number?

Why is 321,220,000 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 321,220,000 can be evenly divided by 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1,000 1,250 2,000 2,500 4,000 5,000 10,000 16,061 20,000 32,122 64,244 80,305 128,488 160,610 256,976 321,220 401,525 513,952 642,440 803,050 1,284,880 1,606,100 2,007,625 2,569,760 3,212,200 4,015,250 6,424,400 8,030,500 10,038,125 12,848,800 16,061,000 20,076,250 32,122,000 40,152,500 64,244,000 80,305,000 160,610,000 and 321,220,000, with no remainder.

Since 321,220,000 cannot be divided by just 1 and 321,220,000, 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).