Q: Is 5,561,550 a Composite Number?

Why is 5,561,550 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 5,561,550 can be evenly divided by 1 2 3 5 6 9 10 15 17 18 25 30 34 45 50 51 75 85 90 102 150 153 170 225 255 306 425 450 510 727 765 850 1,275 1,454 1,530 2,181 2,550 3,635 3,825 4,362 6,543 7,270 7,650 10,905 12,359 13,086 18,175 21,810 24,718 32,715 36,350 37,077 54,525 61,795 65,430 74,154 109,050 111,231 123,590 163,575 185,385 222,462 308,975 327,150 370,770 556,155 617,950 926,925 1,112,310 1,853,850 2,780,775 and 5,561,550, with no remainder.

Since 5,561,550 cannot be divided by just 1 and 5,561,550, 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).