Q: Is 20,005,560 a Composite Number?

Why is 20,005,560 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 20,005,560 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 61 72 90 120 122 180 183 244 305 360 366 488 549 610 732 911 915 1,098 1,220 1,464 1,822 1,830 2,196 2,440 2,733 2,745 3,644 3,660 4,392 4,555 5,466 5,490 7,288 7,320 8,199 9,110 10,932 10,980 13,665 16,398 18,220 21,864 21,960 27,330 32,796 36,440 40,995 54,660 55,571 65,592 81,990 109,320 111,142 163,980 166,713 222,284 277,855 327,960 333,426 444,568 500,139 555,710 666,852 833,565 1,000,278 1,111,420 1,333,704 1,667,130 2,000,556 2,222,840 2,500,695 3,334,260 4,001,112 5,001,390 6,668,520 10,002,780 and 20,005,560, with no remainder.

Since 20,005,560 cannot be divided by just 1 and 20,005,560, 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).