机经128有人算出来吗? kankan

JIMhaha

it should be D..

but the answers from either of them are different:

if A alone is sufficient, P has 3 factors, 1,5,Pitself

if B alone is sufficient, P has 4 factors,  1,the 2 prime nu.,Pitself,

what if either is sufficient but the answers are different?

JIMhaha

sorry I made a mistake,

for A if P = 25 then P has 3 factors   1 5 25  if P=10 (as 4l) P has 4factors

I agree with B