Q: Is 12,678,900 a Composite Number?

Why is 12,678,900 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 12,678,900 can be evenly divided by 1 2 3 4 5 6 10 12 13 15 20 25 26 30 39 50 52 60 65 75 78 100 130 150 156 195 260 300 325 390 650 780 975 1,300 1,950 3,251 3,900 6,502 9,753 13,004 16,255 19,506 32,510 39,012 42,263 48,765 65,020 81,275 84,526 97,530 126,789 162,550 169,052 195,060 211,315 243,825 253,578 325,100 422,630 487,650 507,156 633,945 845,260 975,300 1,056,575 1,267,890 2,113,150 2,535,780 3,169,725 4,226,300 6,339,450 and 12,678,900, with no remainder.

Since 12,678,900 cannot be divided by just 1 and 12,678,900, 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).