>>95
log10_(2^56)=56*log10_2=16.856

log10_8=3log10_2=0.903,log10_6=0.7781,log10_7=？

2^56=10^(16.856)=10^16*10^(0.856)
10^(?-1)<10^(0.856)<10^(?)
より最高位の数は?