Multiplying and dividing whole numbers by numbers greater than 0 and less than 1 can be broken into a whole number calculation followed by multiplying or dividing by a power of 10, for example 10, 100 ...

# A self-dividing number is a number that is divisible by every digit it contains. # For example, 128 is a self-dividing number because 128 % 1 == 0, # 128 % 2 == 0, and 128 % 8 == 0. # Also, a ...