plural of Bernoulli number

(mathematics) A positive integer that cannot be expressed as the sum of all the proper divisors of any positive integer (including the untouchable number itself).

plural of untouchable number

plural of oxidation number

(mathematics) Relating to number theory

plural of student number

A code assigned to a student upon entering an educational institution, and used to identify the student in official documents.

plural of Liouville number

(number theory) An irrational number x with the property that, for every positive integer n, there exist integers p and q with q > 1 and such that 0<|x-p/q|<1/(qⁿ).

plural of Sierpinski number