Q: Is 2,555,000 a Composite Number?

Why is 2,555,000 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 2,555,000 can be evenly divided by 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 73 100 125 140 146 175 200 250 280 292 350 365 500 511 584 625 700 730 875 1,000 1,022 1,250 1,400 1,460 1,750 1,825 2,044 2,500 2,555 2,920 3,500 3,650 4,088 4,375 5,000 5,110 7,000 7,300 8,750 9,125 10,220 12,775 14,600 17,500 18,250 20,440 25,550 35,000 36,500 45,625 51,100 63,875 73,000 91,250 102,200 127,750 182,500 255,500 319,375 365,000 511,000 638,750 1,277,500 and 2,555,000, with no remainder.

Since 2,555,000 cannot be divided by just 1 and 2,555,000, 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).