對於算式2(3+1)(32+1)(34+1)(38+1)(316+1)(332+1)+1,你知道它計算的結果是幾位數嗎?個位是幾

對於算式2(3+1)(32+1)(34+1)(38+1)(316+1)(332+1)+1,你知道它計算的結果是幾位數嗎?個位是幾

2(3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1=(3-1)(3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1=(2^2-1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1=.=(3^32-1)(3^32+1)+1=3^64-1+ 1=3^64,由於lg(3^64)=64*lg(3…