2 3 5 7 11 x 17 July 8, 2019 16 32 64 128 Complete the series 2 3 5 7 11 x 17 2 x 3 x 5 x 7 x 11 x 13 x 17 5 x 7 = 35 2 + 3 + 5 + 7 + 11
