Q: Is 77,780,500 a Composite Number?

Why is 77,780,500 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 77,780,500 can be evenly divided by 1 2 4 5 7 10 14 20 25 28 35 50 70 71 100 125 140 142 175 250 284 313 350 355 497 500 626 700 710 875 994 1,252 1,420 1,565 1,750 1,775 1,988 2,191 2,485 3,130 3,500 3,550 4,382 4,970 6,260 7,100 7,825 8,764 8,875 9,940 10,955 12,425 15,650 17,750 21,910 22,223 24,850 31,300 35,500 39,125 43,820 44,446 49,700 54,775 62,125 78,250 88,892 109,550 111,115 124,250 155,561 156,500 219,100 222,230 248,500 273,875 311,122 444,460 547,750 555,575 622,244 777,805 1,095,500 1,111,150 1,555,610 2,222,300 2,777,875 3,111,220 3,889,025 5,555,750 7,778,050 11,111,500 15,556,100 19,445,125 38,890,250 and 77,780,500, with no remainder.

Since 77,780,500 cannot be divided by just 1 and 77,780,500, 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).