Q: Is 1,780,128 a Composite Number?

Why is 1,780,128 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 1,780,128 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 883 1,008 1,766 2,016 2,649 3,532 5,298 6,181 7,064 7,947 10,596 12,362 14,128 15,894 18,543 21,192 24,724 28,256 31,788 37,086 42,384 49,448 55,629 63,576 74,172 84,768 98,896 111,258 127,152 148,344 197,792 222,516 254,304 296,688 445,032 593,376 890,064 and 1,780,128, with no remainder.

Since 1,780,128 cannot be divided by just 1 and 1,780,128, 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).