
3个回答
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2*(3+1)*(3^2+1)*(3^4+1)*(3^8+1)*(3^16+1)*(3^32+1)+1
=2(3-1)/(3-1)*(3+1)(3^2+1)*(3^4+1)*(3^8+1)*(3^16+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
=43.046721^4*10^24
43^4(7位数)<43.046721^4<43.05^4(7位数)
所以43.046721^4是7位数
43.046721^4*10^24是31位数
计算结果是31位数
=2(3-1)/(3-1)*(3+1)(3^2+1)*(3^4+1)*(3^8+1)*(3^16+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
=43.046721^4*10^24
43^4(7位数)<43.046721^4<43.05^4(7位数)
所以43.046721^4是7位数
43.046721^4*10^24是31位数
计算结果是31位数
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