David Miller (tenor) show tunes and Christmas favourites. In December 2003, he became a member of the international musical quartet Il Divo along with Swiss operatic tenor Urs Bühler, French pop singer Sébastien Izambard, and Spanish baritone Carlos Marín. Their first album, called "Il Divo" became a worldwide multiplatinum selling record when released in November 2004, entering "Billboard" at number four and selling five million copies worldwide in less than a year and knocking Robbie Williams from the number one spot in the charts. Their second album, "Ancora", was released on November 7, 2005 in the United Kingdom. Il Divo's third album, "Siempre",
Joe P. Buhler with a desk calculator up to class number 600, Derrick Lehmer (in the late 1940s) to about 5000, and Buhler with colleagues (in 2001) to 12 million. He continues the project with David Harvey and others. Buhler's research deals with algorithmic algebraic number theory, algebra, and cryptography. He was elected a Fellow of the American Mathematical Society in 2012. Joe P. Buhler Joe Peter Buhler (born 1950 in Vancouver, Washington) is an American mathematician. Buhler received his undergraduate degree from Reed College in 1972, and his Ph.D. from Harvard University in 1977 with thesis "Icosahedral Galois Representations" and thesis advisor