noun Download 🔗Share The result of multiplying a given number of consecutive integers from 1 to the given number. In equations, it is symbolized by an exclamation mark (!). For example, 5! = 1 × 2 × 3 × 4 × 5 = 120. Examples : "Calculating the number of possible seating arrangements for eight people requires understanding factorials, as it involves multiplying all the numbers from 1 to 8. " math number Chat with AIVocabulary GamePractice Reading