Question

Complete the given series:
5, 6, 8, 14, 38, 158, ?
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Answer 1

Answer:

2 x3 x4 x5 x6

+1 +2 +6 +24 +120 +720

5 6 8 14 38 158 878

120 × 6 = 720

So the next number is 158 + 720 = 878