plural of Heegner number

plural of taxicab number

(mathematics) A composite number n that satisfies the modular arithmetic congruence relation bⁿ⁻¹≡1(mod n) for all integers 1<b<n that are relatively prime to n.

(mathematics) A squarefree positive integer d such that the imaginary quadratic field Q(√(−d)) has class number 1; equivalently, such that its ring of integers has unique factorization.

Any of many games based upon numbers.

(game theory) Synonym of nimber

plural of Grundy number

plural of L-number

Any of the identification numbers used in an informal system for classifying catfish before they have an scientific name.

plural of carbon number