On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is:  Choose the correct choice from the following answers.
A) 47619
B) 47719
C) 48619
D) 47649
E) 47659
By hit and trail, we find that    47619 * 7= 
<gadget id="calculator"> 47619 * 7</gadget>
<output>333_333</output>
333333.   7) 333333 (47619   333333   ----------------   0   47619NSWER:47619
<result>A</result>
On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: