the product of 3 different positive integers is 80.What is the greatest possible sum of the integer

Question

the product of 3 different positive integers is 80.What is the greatest possible sum of the integer?

Answer 1

80 factored is 2*2*2*2*5. Since the 3 numbers are different, the only possibilities are 2*4*10 and 2*5*8. The respective sums for those two possibilities are 16 and 15, so the answer is 16.

Answer 2

the product of 3 different positive integers is 80.What is the greatest possible sum of the integer?

Factor 80:  5 x 2 x 2 x 2 x 2 x 1

largest sum from largest factors: 40 x 2 x 1 = 43