perfect squares after multiplying 2-digit numbers with 588
Source: 2019 Dürer Math Competition Finals Day2 E2 https://artofproblemsolving.com/community/c1621835_2019_
January 5, 2022
Perfect Squarenumber theory
Problem Statement
Anne multiplies each two-digit number by in turn, and writes down the so-obtained products. How many perfect squares does she write down?