Q: Is 201,721,170 a Composite Number?

Why is 201,721,170 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 201,721,170 can be evenly divided by 1 2 3 5 6 7 10 14 15 21 30 35 42 43 70 86 89 105 129 178 210 215 251 258 267 301 430 445 502 534 602 623 645 753 890 903 1,246 1,255 1,290 1,335 1,505 1,506 1,757 1,806 1,869 2,510 2,670 3,010 3,115 3,514 3,738 3,765 3,827 4,515 5,271 6,230 7,530 7,654 8,785 9,030 9,345 10,542 10,793 11,481 17,570 18,690 19,135 21,586 22,339 22,962 26,355 26,789 32,379 38,270 44,678 52,710 53,578 53,965 57,405 64,758 67,017 75,551 80,367 107,930 111,695 114,810 133,945 134,034 151,102 156,373 160,734 161,895 223,390 226,653 267,890 312,746 323,790 335,085 377,755 401,835 453,306 469,119 670,170 755,510 781,865 803,670 938,238 960,577 1,133,265 1,563,730 1,921,154 2,266,530 2,345,595 2,881,731 4,691,190 4,802,885 5,763,462 6,724,039 9,605,770 13,448,078 14,408,655 20,172,117 28,817,310 33,620,195 40,344,234 67,240,390 100,860,585 and 201,721,170, with no remainder.

Since 201,721,170 cannot be divided by just 1 and 201,721,170, 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).