11th OG 153 题

shiningpenny

153。Does the integer k have a factor P such that 1<p<k^2 (表示k的2次方）？

(1) k>4!

(2) 13!+2=<k=<13!+13

=<表示小于等于

请NN帮忙解释，答案是B

shiningpenny

thanks&nbsp; a&nbsp; lot !!!!!!