Complex sentence: Richard E. Crandall is an American computer scientist and physicist who has made contributions to computational number theory, most notably the development of the irrational base discrete weighted transform, an important method of finding very large primes.
Split into simpler sentences: Richard E. Crandall is an American computer scientist and physicist who has made contributions to computational number theory. He is most notably for the development of the irrational base discrete weighted transform, an important method of finding very large primes.