Q31:
A positive integer n is said to be “prime-saturated” if the product of all the different positive prime factors of n is less than the square root of n. What is the greatest two-digit prime-saturated integer?
A. 99
B. 98
C. 97
D. 96
E. 95
Answer:
答案选D 我选B
98的prime factor 1和7 < square root of 98 啊~
来人指导指导啊！ | 
