41 & 39 = 1599. (40 x 40 = 1600 but I assume you meant different numbers)
Any pair of one even and one odd number will have an even product and an odd sum.
They are 9 and 4
6 and 2 are a number pair with a sum of 8 and a product of 12
7*8 = 56. The further you move from the midpoint the smaller the multiple. So if you are not restricted to whole numbers, 7.5*7.5 = 56.25 is the largest possible product.
20 and 20.
Any two odd numbers will have an odd product and an even sum.
41 & 39 = 1599. (40 x 40 = 1600 but I assume you meant different numbers)
Any pair of one even and one odd number will have an even product and an odd sum.
They are: 7 and 8
They are 9 and 6
They are 9 and 4
6 and 2 are a number pair with a sum of 8 and a product of 12
7*8 = 56. The further you move from the midpoint the smaller the multiple. So if you are not restricted to whole numbers, 7.5*7.5 = 56.25 is the largest possible product.
The numbers are 8 and 1 .
How about: 9 and 4
17 & 18 (306)