142857 這個數字發現於埃及金字塔內,它是一組神奇數字! 1 ÷ 7 = 0.142857 循環小數。 142857 × 1 = 142857 142857 × 2 = 285714 142857 × 3 = 428571 142857 × 4 = 571428 142857 × 5 = 714285 142857 × 6 = 857142 142857 × 7 = 999999 142 + 857 = 999 14 + 28 + 57 = 99 142857 × 142857 = 20408122449 前五位加上後六位 20408 + 122449 = 142857
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