Question

Fill in the blanks:

A number is divisible by ……….. , if it is even and the sum of its digits is divisible by $3.$

Answer 1

A number is divisible by $6$, if it is even and the sum of its digits is divisible by $3.$

Ex -: $42$ is the even number sum of its digits are $4+2=6$ which is divisible by $3.$

So, we can say that $42$is divisible by $6$.