Q: Is 20,222,220 a Composite Number?

Why is 20,222,220 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 20,222,220 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 47 60 71 94 101 141 142 188 202 213 235 282 284 303 355 404 426 470 505 564 606 705 710 852 940 1,010 1,065 1,212 1,410 1,420 1,515 2,020 2,130 2,820 3,030 3,337 4,260 4,747 6,060 6,674 7,171 9,494 10,011 13,348 14,241 14,342 16,685 18,988 20,022 21,513 23,735 28,482 28,684 33,370 35,855 40,044 43,026 47,470 50,055 56,964 66,740 71,205 71,710 86,052 94,940 100,110 107,565 142,410 143,420 200,220 215,130 284,820 337,037 430,260 674,074 1,011,111 1,348,148 1,685,185 2,022,222 3,370,370 4,044,444 5,055,555 6,740,740 10,111,110 and 20,222,220, with no remainder.

Since 20,222,220 cannot be divided by just 1 and 20,222,220, 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).