27.37.41.58.61.73.83.95.11.14.33.47.57.62.87.99哪些是质数哪些是和...答:示意图如下:在D10中输入公式:=IF(ROW(A10)<4,"",IF(SUM(IF(MOD(A10,ROW(INDIRECT("2:"&INT(A10/2)))>0,0,1))=0,"",SUM(IF(MOD(A10,ROW(INDIRECT("2:"&INT(A10/2)))>0,0,1)))同时按下ENTER键,SHIFT键,和CTRL键.在C10中输入公式:=IF(D10="","素数","")把数填在A10...
判断1997是否是质数?用算法和程序框图两种方法答:在D10中输入公式:=IF(ROW(A10)<4,"",IF(SUM(IF(MOD(A10,ROW(INDIRECT("2:"&INT(A10/2)))>0,0,1))=0,"",SUM(IF(MOD(A10,ROW(INDIRECT("2:"&INT(A10/2)))>0,0,1)))同时按下ENTER键,SHIFT键,和CTRL键.在C10中输入公式:=IF(D10="","素数","")把数填在A10处,如果是...