「除得開」

(pos:動詞)(sim:整除)
<explanation>
yue:分做幾份之後冇#餘數
eng:to be divisible
<eg>
yue:你逐個數拎出嚟試，睇下俾二除唔除得開，跟住試三、五、七，逐個質數試，試到嗰個數嘅開方為止。 (nei5 zuk6 go3 sou3 ling1 ceot1 lai4 si3, tai2 haa5 bei2 ji6 ceoi4 m4 ceoi4 dak1 hoi1, gan1 zyu6 si3 saam1, ng5, cat1, zuk6 go3 zat1 sou3 si3, si3 dou3 go2 go3 sou3 ge3 hoi1 fong1 wai4 zi2.)
eng:You test the numbers one by one. First you check if it's divisible by 2, and then try 3, 5, and 7, and try every prime number until you reach the square root of that number.