John David Brillhart is a mathematician, teacher emeritus on the College or university of Arizona. He’s known for his function in integer factorization, like the advancement of the continuing fraction factorization technique. He is a primary participant in the Cunningham task. Brillhart received his A.B. in 1953, his M.A. in 1966, and his Ph.D. in 1967, all from UC Berkeley. He is along the way of editing and enhancing the collected functions of Leonard Carlitz.