## Primes And Square Sums

#### Problem

Prove that there exists no prime which is one less than a multiple of four that can be written as the sum of two squares.

Problem ID: 120 (May 2003) Difficulty: 3 Star

Prove that there exists no prime which is one less than a multiple of four that can be written as the sum of two squares.

Problem ID: 120 (May 2003) Difficulty: 3 Star