DIGITAL MULTIPLICATION.solution

The solution that gives the smallest possible sum of digits in the common product is 23  174 = 58  69 = 4,002, and the solution that gives the largest possible sum of digits, 9  654 = 18  327 = 5,886. In the first case the digits sum to 6 and in the second case to 27. There is no way of obtaining the solution but by actual trial.

 

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