设1=a1≤a2≤…≤a7,其中a1,a3,a5,a7成公比为q的等 比数列,a2,a4

1a1a2≤…≤a7,其中a1a3a5a7成公比为q的等

比数列,a2a4a6成公差为1的等差数列,则q的最小值是________

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