(20 votes, average: 4.00 out of 5)Find the missing number in the series 3, 5, 13, 43, 177, ??, 5353
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3*1+2 = 5
5*2+3 = 13
13*3+4= 43
43*4+5 = 177
177*5 + 6 = 891
891*6 + 7 = 5353
5*2+3 = 13
13*3+4= 43
43*4+5 = 177
177*5 + 6 = 891
891*6 + 7 = 5353
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Answer is 891
3 x 1 + 2 = 5
5 x 2 + 3 = 13
13 x 3 + 4 = 43
43 x 4 + 5 = 177 <—
177 x 5 + 6 = 891