Q: Is 2,139,900 a Composite Number?

Why is 2,139,900 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 2,139,900 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 140 150 175 210 300 350 420 525 700 1,019 1,050 2,038 2,100 3,057 4,076 5,095 6,114 7,133 10,190 12,228 14,266 15,285 20,380 21,399 25,475 28,532 30,570 35,665 42,798 50,950 61,140 71,330 76,425 85,596 101,900 106,995 142,660 152,850 178,325 213,990 305,700 356,650 427,980 534,975 713,300 1,069,950 and 2,139,900, with no remainder.

Since 2,139,900 cannot be divided by just 1 and 2,139,900, 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).