Question: what is the difference between irrational numbers and surds?
Answer: Irrational numbers have infinite numbers of decimals of non-recurring nature. Like: π, √2, √5 are the irrational numbers. For example, each of the numbers √7, ∛3, 5√13 etc. is an irrational number. Definitions of surd: A root of a positive real quantity is called a surd if its value cannot be exactly determined.