2(3+1)(3^2+1)(3^4+1)……（3^32+1)+1
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2(3+1)(3^2+1)(3^4+1)……（3^32+1)+12(3+1)(3^2+1)(3^4+1)……（3^32+1)+12(3+1)(3^2+1)(3^4+1)……（3^32+1)+12(3+
2(3+1)(3^2+1)(3^4+1)……（3^32+1)+1
2(3+1)(3^2+1)(3^4+1)……（3^32+1)+1
2(3+1)(3^2+1)(3^4+1)……（3^32+1)+1
2(3+1)(3^2+1)(3^4+1).(3^32+1)+1
=(3-1)(3+1)(3^2+1)(3^4+1).(3^32+1)+1
=(3^2-1)(3^2+1)(3^4+1).(3^32+1)+1
=(3^4-1)(3^4+1).(3^32+1)+1
=.
=3^64-1+1
=3^64