Q: Is 20,716,540 a Composite Number?

Why is 20,716,540 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 20,716,540 can be evenly divided by 1 2 4 5 10 13 17 20 26 34 43 52 65 68 85 86 109 130 170 172 215 218 221 260 340 430 436 442 545 559 731 860 884 1,090 1,105 1,118 1,417 1,462 1,853 2,180 2,210 2,236 2,795 2,834 2,924 3,655 3,706 4,420 4,687 5,590 5,668 7,085 7,310 7,412 9,265 9,374 9,503 11,180 14,170 14,620 18,530 18,748 19,006 23,435 24,089 28,340 37,060 38,012 46,870 47,515 48,178 60,931 79,679 93,740 95,030 96,356 120,445 121,862 159,358 190,060 240,890 243,724 304,655 318,716 398,395 481,780 609,310 796,790 1,035,827 1,218,620 1,593,580 2,071,654 4,143,308 5,179,135 10,358,270 and 20,716,540, with no remainder.

Since 20,716,540 cannot be divided by just 1 and 20,716,540, 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).