Q: Is 21,588,120 a Composite Number?

Why is 21,588,120 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 21,588,120 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 81 90 108 120 135 162 180 216 243 270 324 360 405 486 540 648 810 972 1,080 1,215 1,620 1,944 2,221 2,430 3,240 4,442 4,860 6,663 8,884 9,720 11,105 13,326 17,768 19,989 22,210 26,652 33,315 39,978 44,420 53,304 59,967 66,630 79,956 88,840 99,945 119,934 133,260 159,912 179,901 199,890 239,868 266,520 299,835 359,802 399,780 479,736 539,703 599,670 719,604 799,560 899,505 1,079,406 1,199,340 1,439,208 1,799,010 2,158,812 2,398,680 2,698,515 3,598,020 4,317,624 5,397,030 7,196,040 10,794,060 and 21,588,120, with no remainder.

Since 21,588,120 cannot be divided by just 1 and 21,588,120, 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).