pierre de fermat a 17th century French lawyer stated that any whole number can be written as the sum of four or less square numbers for example 15 equals three squared +2 squared plus one squared plus one squared express 61 as such a sum
Pierre de Fermat a 17th century French lawyer stated that any whole number can be written as the sum of four or less square numbers for example 15 equals three squared +2 squared plus one squared plus one squared express 61 as such sum
