Q: Is 21,533,200 a Composite Number?

Why is 21,533,200 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 21,533,200 can be evenly divided by 1 2 4 5 8 10 13 16 20 25 26 40 41 50 52 65 80 82 100 101 104 130 164 200 202 205 208 260 325 328 400 404 410 505 520 533 650 656 808 820 1,010 1,025 1,040 1,066 1,300 1,313 1,616 1,640 2,020 2,050 2,132 2,525 2,600 2,626 2,665 3,280 4,040 4,100 4,141 4,264 5,050 5,200 5,252 5,330 6,565 8,080 8,200 8,282 8,528 10,100 10,504 10,660 13,130 13,325 16,400 16,564 20,200 20,705 21,008 21,320 26,260 26,650 32,825 33,128 40,400 41,410 42,640 52,520 53,300 53,833 65,650 66,256 82,820 103,525 105,040 106,600 107,666 131,300 165,640 207,050 213,200 215,332 262,600 269,165 331,280 414,100 430,664 525,200 538,330 828,200 861,328 1,076,660 1,345,825 1,656,400 2,153,320 2,691,650 4,306,640 5,383,300 10,766,600 and 21,533,200, with no remainder.

Since 21,533,200 cannot be divided by just 1 and 21,533,200, 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).