Q: Is 21,706,500 a Composite Number?

Why is 21,706,500 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 21,706,500 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 25 29 30 50 58 60 75 87 100 116 125 145 150 174 250 290 300 348 375 435 499 500 580 725 750 870 998 1,450 1,497 1,500 1,740 1,996 2,175 2,495 2,900 2,994 3,625 4,350 4,990 5,988 7,250 7,485 8,700 9,980 10,875 12,475 14,471 14,500 14,970 21,750 24,950 28,942 29,940 37,425 43,413 43,500 49,900 57,884 62,375 72,355 74,850 86,826 124,750 144,710 149,700 173,652 187,125 217,065 249,500 289,420 361,775 374,250 434,130 723,550 748,500 868,260 1,085,325 1,447,100 1,808,875 2,170,650 3,617,750 4,341,300 5,426,625 7,235,500 10,853,250 and 21,706,500, with no remainder.

Since 21,706,500 cannot be divided by just 1 and 21,706,500, 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).