Question

product of two odd composite natural number is 1599.,then what is the sum of two numbers.​

Answer 1

Answer:: I think its 39 and 41  and the sum of both is 80 as this can be done by a very  

simple equation

we know 1599 = 1600 - 1

                        = $40^{2} - 1^{2}$

                        = (40-1) (40+1)

                        = 39 x 41

both are odd

so sum is 39 + 41 = 80