Q: Is 21,006,150 a Composite Number?

Why is 21,006,150 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 21,006,150 can be evenly divided by 1 2 3 5 6 10 11 15 22 25 29 30 33 50 55 58 66 75 87 110 145 150 165 174 275 290 319 330 435 439 550 638 725 825 870 878 957 1,317 1,450 1,595 1,650 1,914 2,175 2,195 2,634 3,190 4,350 4,390 4,785 4,829 6,585 7,975 9,570 9,658 10,975 12,731 13,170 14,487 15,950 21,950 23,925 24,145 25,462 28,974 32,925 38,193 47,850 48,290 63,655 65,850 72,435 76,386 120,725 127,310 140,041 144,870 190,965 241,450 280,082 318,275 362,175 381,930 420,123 636,550 700,205 724,350 840,246 954,825 1,400,410 1,909,650 2,100,615 3,501,025 4,201,230 7,002,050 10,503,075 and 21,006,150, with no remainder.

Since 21,006,150 cannot be divided by just 1 and 21,006,150, 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).