To better study the theory of numbers, it is important to easily and at any time the best course Number Theory. This free app is a dynamic library supplied by the best French educational websites specialize in numbers theory lessons. The courses on the following themes are present in our application: - arithmetic d Reminders - Body fi nished - The law of quadratic reciprocity - Quadratic Body - number field and whole of rings - units in a real quadratic field - Groups ideals classes - Body and