Euler found four whole numbers such that the sum of any two of the numbers is a perfect square...
Age 14 to 16 Challenge Level:
Write 100 as the sum of two positive integers, one divisible by
7 and the other divisible by 11. Use your answer to find formulas
giving all the solutions of the following equation where x and y
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice.