Q: Is 21,330,120 a Composite Number?

Why is 21,330,120 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 21,330,120 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 67 70 84 105 120 134 140 168 201 210 268 280 335 379 402 420 469 536 670 758 804 840 938 1,005 1,137 1,340 1,407 1,516 1,608 1,876 1,895 2,010 2,274 2,345 2,653 2,680 2,814 3,032 3,752 3,790 4,020 4,548 4,690 5,306 5,628 5,685 7,035 7,580 7,959 8,040 9,096 9,380 10,612 11,256 11,370 13,265 14,070 15,160 15,918 18,760 21,224 22,740 25,393 26,530 28,140 31,836 39,795 45,480 50,786 53,060 56,280 63,672 76,179 79,590 101,572 106,120 126,965 152,358 159,180 177,751 203,144 253,930 304,716 318,360 355,502 380,895 507,860 533,253 609,432 711,004 761,790 888,755 1,015,720 1,066,506 1,422,008 1,523,580 1,777,510 2,133,012 2,666,265 3,047,160 3,555,020 4,266,024 5,332,530 7,110,040 10,665,060 and 21,330,120, with no remainder.

Since 21,330,120 cannot be divided by just 1 and 21,330,120, 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).