EntityQ1812172· pop 20· linked from 74 articlesempty productSign in to saveresult of multiplying no factorsConnections𝑛-tupleEntityinitial and terminal objectsEntitymathematicsEntityarithmeticEntityInternational Standard Book NumberEntityalgorithmEntityPythonEntityintegerEntityadditionEntityset theoryEntityfunctionEntitymultiplicationEntitycomputer programmingEntityfactorialEntityEdsger W. DijkstraEntityLispEntityformulaEntitybinomial theoremEntityempty setEntitymathematical inductionEntityCategories1 (number)Multiplication