"The Solitude of Prime Numbers" is a novel by Paolo Giordano that explores the lives of two socially awkward individuals, Alice and Mattia. Both characters experience deep emotional struggles and isolation, which are symbolized by the concept of prime numbers—numbers that can only be divided by one and themselves. The story delves into themes of loneliness, connection, and the impact of trauma. As Alice and Mattia navigate their complex relationship, they confront their pasts and the challenges of forming meaningful bonds, ultimately highlighting the human desire for companionship despite personal barriers.