Assume that there is a finite number of prime numbers: p1,p2,p3,…,pnp_1, p_2, p_3, \dots, p_np1,p2,p3,…,pn. Prove that this assumption leads to a contradiction.
368 exam-style questions on Edexcel A Level Maths Algebraic Methods, covering 1.1 Proof by Contradiction, 1.2 Algebraic Fractions, 1.3 Partial Fractions, 1.4 Repeated Factors, and 1.5 Algebraic Division. Each one has a worked solution and a mark scheme showing where the marks go.