Q: Is 21,104,340 a Composite Number?

Why is 21,104,340 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 21,104,340 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 23 30 41 46 60 69 82 92 115 123 138 164 205 230 246 276 345 373 410 460 492 615 690 746 820 943 1,119 1,230 1,380 1,492 1,865 1,886 2,238 2,460 2,829 3,730 3,772 4,476 4,715 5,595 5,658 7,460 8,579 9,430 11,190 11,316 14,145 15,293 17,158 18,860 22,380 25,737 28,290 30,586 34,316 42,895 45,879 51,474 56,580 61,172 76,465 85,790 91,758 102,948 128,685 152,930 171,580 183,516 229,395 257,370 305,860 351,739 458,790 514,740 703,478 917,580 1,055,217 1,406,956 1,758,695 2,110,434 3,517,390 4,220,868 5,276,085 7,034,780 10,552,170 and 21,104,340, with no remainder.

Since 21,104,340 cannot be divided by just 1 and 21,104,340, 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).