What are two different ways in which you can use prime factorization to find the prime factors of a number

Stephen thublin invests $1,000,000 in a 45-day certificate of deposit with 6.55% interest. what is the total interest income from the investment?

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.