Concept:The series follows a pattern where each term is multiplied by the next integer to get the next term. Explanation:Start with 1. Multiply by 2 to get 2.Multiply 2 by 3 to get 6. Multiply 6 by 4 to get 24. Multiply 24 by 5 to get 120. Multiply 120 by 6 to get 720. Thus, the missing term is 720.
