Related Post: 15 3 5 4 15 3 5 42 15 3 * 5 4 2 3 15 5 45 15 =- 3 4x 5 )+ 13x 15 3 4 5 8 15 3 4 5 6 15 3 4x21 5 8 15 3 ∙ 5 42 3f 15 =- 3 5 4f