60×2 5 July 8, 2019 16 32 64 128 60 2 5 60 2 54 60 * 2 50 60 2 56 60 2 5 1 60 * 2 * 52 60 * 2 55 60 2 5 10 60 2 5x 60 2 53 60 * 2 57 60 2 58 60 2 59 60 * 2 51 60 5 2 7