Q: Is 21,103,000 a Composite Number?

Why is 21,103,000 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 21,103,000 can be evenly divided by 1 2 4 5 8 10 20 25 40 47 50 94 100 125 188 200 235 250 376 449 470 500 898 940 1,000 1,175 1,796 1,880 2,245 2,350 3,592 4,490 4,700 5,875 8,980 9,400 11,225 11,750 17,960 21,103 22,450 23,500 42,206 44,900 47,000 56,125 84,412 89,800 105,515 112,250 168,824 211,030 224,500 422,060 449,000 527,575 844,120 1,055,150 2,110,300 2,637,875 4,220,600 5,275,750 10,551,500 and 21,103,000, with no remainder.

Since 21,103,000 cannot be divided by just 1 and 21,103,000, 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).