5-5 Divisibility and Factors ¯ ¯ ?3 135 1 2 ● 3 135 ¯¯ 5 9=1+3+5 ● 50 ● 3=3÷9 3 ● 10 ¯ 3 135 ¯ ● ?3 403 2 7=4+0+3 ● 1¯ 2=3÷7 3 ● 3 403 ¯ 3ï 3 3 6 78 ?6 78 3 3 ¯ ¯¯ ï ï 2 78 ● ¯ 3 78 ● ï 6 78 ?6 116 4 ï2 116 ● 3 116 ● 6 116 3 ,2 6 108