Numerical symbolism was widespread and deeply took root in a world culture. The thinkers of middle Ages and poet of Renaissance of Данте inlaid the deep meaning in numbers. Author of this book Vincent Фостер Хоппер, teacher of English literature, professor of the New York university, shows that in medieval consciousness of man a numerical symbolics was a not simply mathematical instrument like playing chips, and by basis of understanding of the world, clear on a form expression. An author investigates the main sources of numerical symbolism : elementary symbols (for example, fingers), Babylonian astrology, Pythagorean system of correlation of numbers and skilful combination of all these elements by gnostics at the development of numerical philosophy, expressed, Fathers of Church, in particular, in beauty of order in the "Divine comedy" of Данте.