SAT OG的一道数学题,求教!P773.17 If p,r,and sare three different prime numbers greater than 2,and n=pXrXs,(X是乘）,how many positive factors ,including 1 and n,does n have?
2019-05-23
SAT OG的一道数学题,求教!P773.17
If p,r,and sare three different prime numbers greater than 2,and n=pXrXs,(X是乘）,how many positive factors ,including 1 and n,does n have?
优质解答
有1,p,r,s,pr,rs,ps,n共8个约数
有1,p,r,s,pr,rs,ps,n共8个约数