(a+1)(a^2+1)(a^4+1)…(a^1024+1),a不=1

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(a+1)(a^2+1)(a^4+1)…(a^1024+1),a不=1(a+1)(a^2+1)(a^4+1)…(a^1024+1),a不=1(a+1)(a^2+1)(a^4+1)…(a^1024+1)

(a+1)(a^2+1)(a^4+1)…(a^1024+1),a不=1
(a+1)(a^2+1)(a^4+1)…(a^1024+1),a不=1

(a+1)(a^2+1)(a^4+1)…(a^1024+1),a不=1
=(a-1)(a+1)(a^2+1)(a^4+1)……(a^1024+1)/(a-1)
=(a^2-1)(a^2+1)(a^4+1)……(a^1024+1)/(a-1)
=(a^4-1)(a^4+1)……(a^1024+1)/(a-1)
……
……
=(a^2048-1)/(a-1)