Do me a favor.How many positive whole numbers less than 81 are NOT equal to squares of whole numbers?Positive whole number正整数squares平方我差不多已经被绕昏了

分类: 作业答案 • 2022-07-27 10:31:07

问题描述：

Do me a favor.
How many positive whole numbers less than 81 are NOT equal to squares of whole numbers?
Positive whole number正整数
squares平方
我差不多已经被绕昏了

答

意思是小于81的非完全平方的正整数有几个?即在1 --80 除去 1 4 9 16 25 36 49 64 所以 80-8=72