Q: Is 2,538,144 a Composite Number?

Why is 2,538,144 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 2,538,144 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 1,008 1,259 2,016 2,518 3,777 5,036 7,554 8,813 10,072 11,331 15,108 17,626 20,144 22,662 26,439 30,216 35,252 40,288 45,324 52,878 60,432 70,504 79,317 90,648 105,756 120,864 141,008 158,634 181,296 211,512 282,016 317,268 362,592 423,024 634,536 846,048 1,269,072 and 2,538,144, with no remainder.

Since 2,538,144 cannot be divided by just 1 and 2,538,144, 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).