On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is:

On multiplying a number by 7, the product is a number each of whose di

1.	On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is:
Answer» By hit and trial, we find that 47619 x 7 = 333333.