From Longman Dictionary of Contemporary Englishgreater/more/better etc than the sum of its partsgreater/more/better etc than the sum of its partsEFFECTIVEhaving a quality or effectiveness as a group that you would not expect from the quality of each member The team is greater than the sum of its parts. → sum
Examples from the Corpus
greater/more/better etc than the sum of its parts• Or is the organisation more than the sum of its parts? 