Q: Is 1,812,800 a Composite Number?

Why is 1,812,800 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 1,812,800 can be evenly divided by 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 64 80 88 100 103 110 160 176 200 206 220 275 320 352 400 412 440 515 550 704 800 824 880 1,030 1,100 1,133 1,600 1,648 1,760 2,060 2,200 2,266 2,575 3,296 3,520 4,120 4,400 4,532 5,150 5,665 6,592 8,240 8,800 9,064 10,300 11,330 16,480 17,600 18,128 20,600 22,660 28,325 32,960 36,256 41,200 45,320 56,650 72,512 82,400 90,640 113,300 164,800 181,280 226,600 362,560 453,200 906,400 and 1,812,800, with no remainder.

Since 1,812,800 cannot be divided by just 1 and 1,812,800, 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).