Q: Is 721,471,530 a Composite Number?

Why is 721,471,530 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 721,471,530 can be evenly divided by 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 359 390 718 1,077 1,795 2,154 3,590 4,667 5,153 5,385 9,334 10,306 10,770 14,001 15,459 23,335 25,765 28,002 30,918 46,670 51,530 66,989 70,005 77,295 133,978 140,010 154,590 200,967 334,945 401,934 669,890 1,004,835 1,849,927 2,009,670 3,699,854 5,549,781 9,249,635 11,099,562 18,499,270 24,049,051 27,748,905 48,098,102 55,497,810 72,147,153 120,245,255 144,294,306 240,490,510 360,735,765 and 721,471,530, with no remainder.

Since 721,471,530 cannot be divided by just 1 and 721,471,530, 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).