Ichiro and Ivo are playing a game called Factor Subtractor. In the​ game, they each select a number from 11 to 15. For the number that is​ selected, they write down all of the whole numbers between 1 and their selected number. They then cross out all of the factors of the number they selected.​ Finally, they add all of the numbers that remain. The person who has the highest total is the winner. Complete parts a to c. Question content area bottom Part 1 a. Ichiro chooses the number 15. What is his​ score?