Q: Is 71,681,490 a Composite Number?

Why is 71,681,490 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 71,681,490 can be evenly divided by 1 2 3 5 6 9 10 15 18 19 27 30 38 45 54 57 89 90 95 114 135 157 171 178 190 267 270 285 314 342 445 471 513 534 570 785 801 855 890 942 1,026 1,335 1,413 1,570 1,602 1,691 1,710 2,355 2,403 2,565 2,670 2,826 2,983 3,382 4,005 4,239 4,710 4,806 5,073 5,130 5,966 7,065 8,010 8,455 8,478 8,949 10,146 12,015 13,973 14,130 14,915 15,219 16,910 17,898 21,195 24,030 25,365 26,847 27,946 29,830 30,438 41,919 42,390 44,745 45,657 50,730 53,694 69,865 76,095 80,541 83,838 89,490 91,314 125,757 134,235 139,730 152,190 161,082 209,595 228,285 251,514 265,487 268,470 377,271 402,705 419,190 456,570 530,974 628,785 754,542 796,461 805,410 1,257,570 1,327,435 1,592,922 1,886,355 2,389,383 2,654,870 3,772,710 3,982,305 4,778,766 7,168,149 7,964,610 11,946,915 14,336,298 23,893,830 35,840,745 and 71,681,490, with no remainder.

Since 71,681,490 cannot be divided by just 1 and 71,681,490, 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).