prime number 判斷 英文入面叫質數做prime number或者prime。 大過1又唔係質數嘅自然數就叫合成數，合成數都係由大過1嘅自然數相乘而來。例如5 就係質數，因為要將5 寫做乘積嘅話，就一定 ...

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英文入面叫質數做prime number或者prime 大過1又唔係質數嘅自然數就叫合成數 合成數都係由大過1嘅自然數相乘而來 例如5 就係質數 因為要將5 寫做乘積嘅話 就一定  一個大於1的自然數 如果除了1和它本身之外 再也沒有其他因數 我們就稱它為質數 prime number 例如 小於10的質數有2 3 5 7 另外 我們知道除了  2018年10月14日 一個質數 Prime 是一個大於1 且無法找到除了自己本身和1之外的自然數能整除它的自然數 舉例來說 2 3 5 7 11 13和17均為質數 質數是數學上的難題  英文入面叫質數做prime number或者prime 大過1又唔係質數嘅自然數就叫合成數 合成數都係由大過1嘅自然數相乘而來 例如5 就係質數 因為要將5 寫做乘積嘅話 就一定  接下來要介紹的演算法有 從小到大列出質數 建立質數表 判斷一個數是不是質數 質數測試 使用乘法湊得給定的數 質因數分解 prime generation sieve of Eratosthenes

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525753 global ratings

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  • player2911
    5.0 out of 5 starsVerified Purchase
    判断质数的几种方法
    Reviewed in the Thailand on July 6, 2025
    用最淺白的說話去解釋，如果把n 除2,3,4,…,9 後，所有結果都是小數，n 必定是質數prime number。 再用例子說明，假設我們要判斷73 是否質數，只須測試它可否被2,3,4…,9 所整除 ...
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  • pro3498
    1.0 out of 5 starsVerified Purchase
    如何有效率地寫程式判斷質數和尋找質數？
    Reviewed in the Thailand on July 17, 2025
    接下來要介紹的演算法有：從小到大列出質數（建立質數表）、判斷一個數是不是質數（質數測試）、使用乘法湊得給定的數（質因數分解）。 prime generation: sieve of Eratosthenes.
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  • pro5323
    1.0 out of 5 stars
    極速測試兩位質數
    Reviewed in the Thailand on June 25, 2025
    2018年10月14日 — 一個質數(Prime)是一個大於1，且無法找到除了自己本身和1之外的自然數能整除它的自然數。 舉例來說，2、3、5、7、11、13和17均為質數。 質數是數學上的難題 ...
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