Q: Is 20,420,440 a Composite Number?

Why is 20,420,440 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 20,420,440 can be evenly divided by 1 2 4 5 8 10 19 20 38 40 76 95 97 152 190 194 277 380 388 485 554 760 776 970 1,108 1,385 1,843 1,940 2,216 2,770 3,686 3,880 5,263 5,540 7,372 9,215 10,526 11,080 14,744 18,430 21,052 26,315 26,869 36,860 42,104 52,630 53,738 73,720 105,260 107,476 134,345 210,520 214,952 268,690 510,511 537,380 1,021,022 1,074,760 2,042,044 2,552,555 4,084,088 5,105,110 10,210,220 and 20,420,440, with no remainder.

Since 20,420,440 cannot be divided by just 1 and 20,420,440, 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).