2的100次方是几位数,怎么算
问题描述:
2的100次方是几位数,怎么算
怎么算
答
lg(2)=0.301029995663981195213738894724493026768189881462108541...
lg(2^100)= 100 log(2) =30.1029995663981195213738894724493026768189881462108541...
所以2^100是个31位数,开始有效数字是
10^0.10299956639811952137388947244930=1.2676506002282294014967032053760
其实:
2^100=1267650600228229401496703205376