Multiple choice

Which number is wrong according to the given number series pattern? 1, 2, 6, 24, 120, 620, 5040

  1. 6

  2. 24

  3. 120

  4. 620

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The pattern is factorial: 1! = 1, 2! = 2, 3! = 6, 4! = 24, 5! = 120, 6! = 720, 7! = 5040. The term 620 is incorrect as it should be 720.

AI explanation

The pattern in this series multiplies each number by consecutive positive integers to get the next term. The first term is multiplied by 2 to get 2, then 2 is multiplied by 3 to get 6, then 6 is multiplied by 4 to get 24, and 24 is multiplied by 5 to get 120. Following this pattern, 120 should be multiplied by 6 to result in 720, not 620. Therefore, 620 is the wrong number in the series.

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