单选题 If k and ω are the dimensions of a rectangle that has area 42, and if k and ω are integers such that k>ω, what is the total number of possible values of k?

【正确答案】 C
【答案解析】[解析] 根据k×ω=42,且k>ω,可得k和ω的可能取值如下所示:
k=7 ω=6
k=14 ω=3
k=21 ω=2
k=42 ω=1
所以k的可能取值的总数为4。