1.

on multiplying a number by 7 the product is a number each of whose digits is 3 find the smallest such number

Answer»

By hit and TRAIL, we find that

47619 x 7 = 333333.

7) 333333 (47619
    333333
----------------
        0

And 476190476 x 7 = 3333333333 but SMALLEST NUMBER is 47619.



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