the great mathmatician Pythagoras is lived in Greece follower of the famous mathmatician and philosopher Pythagoras were the first to discover the number which were not rational around 400BC .These number are called irrational number because they cannot be written in the form of ratio of integer they are many myth surrounding the discovery of irrational number by the Pythagorean, hippacus of Croton in all the myths , hippacus has an unfortunate ,either for discovery that underroot 2 is irrational or for disclosing the secret about underroot 2 to people outside the secret Pythagorean secret

thanking you

Name - sarthak choudhary