Q: Is 12,311,550 a Composite Number?

Why is 12,311,550 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 12,311,550 can be evenly divided by 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 109 150 218 225 251 327 450 502 545 654 753 981 1,090 1,255 1,506 1,635 1,962 2,259 2,510 2,725 3,270 3,765 4,518 4,905 5,450 6,275 7,530 8,175 9,810 11,295 12,550 16,350 18,825 22,590 24,525 27,359 37,650 49,050 54,718 56,475 82,077 112,950 136,795 164,154 246,231 273,590 410,385 492,462 683,975 820,770 1,231,155 1,367,950 2,051,925 2,462,310 4,103,850 6,155,775 and 12,311,550, with no remainder.

Since 12,311,550 cannot be divided by just 1 and 12,311,550, 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).