let the smallest be n, then the integers are n, n+1, n+2 and n+3.

The product of the two smallest is n(n+1), and of the two largest is

(n+2)(n+3), so we are told that

n(n+1) = (n+1)(n+3) - 64.

Which is a quadratic in n, you solve this then you have your four numbers.

RonL

Oppsss.. odd integers.. anyway you get the idea