Q: Is 20,970,400 a Composite Number?

Why is 20,970,400 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 20,970,400 can be evenly divided by 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 80 88 100 110 160 176 200 220 275 352 400 440 550 800 880 1,100 1,760 2,200 2,383 4,400 4,766 8,800 9,532 11,915 19,064 23,830 26,213 38,128 47,660 52,426 59,575 76,256 95,320 104,852 119,150 131,065 190,640 209,704 238,300 262,130 381,280 419,408 476,600 524,260 655,325 838,816 953,200 1,048,520 1,310,650 1,906,400 2,097,040 2,621,300 4,194,080 5,242,600 10,485,200 and 20,970,400, with no remainder.

Since 20,970,400 cannot be divided by just 1 and 20,970,400, 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).