Anyone needs an answer for this question? Yi and Sue play a game. They start with the number $42000$. Yi divides by a prime number, then passes the quotient to Sue. Then Sue divides this quotient by a prime number and passes the result back to Yi, and they continue taking turns in this way. The prime factor of 42000 is 5*5*5*3*2*2*2*2*7 these means there are nine total prime factors of 42000 so if Yi started the game and sue went 2nd, just continue the pattern until you get to the 9th place when you get there you see that Yi is last which means she has lost the game.