素数之判定  

Determination of Prime Numbers

作　　者：倪家泰 NI Jiatai(No.15 Middle of Panzhihua,Panzhihua,Sichuan Province 617000)

机构地区：[1]攀枝花市十五中学,四川攀枝花617000

出　　处：《楚雄师范学院学报》2023年第3期103-113,共11页Journal of Chuxiong Normal University

摘　　要：提出了一个素数判定的新方法,围绕判定数N=30K+a的个位数字只有1、3、7、9四种形式,对N的判定也分四种情况进行讨论。This paper suggests a new method to determine prime numbers that centers around four situations where the last digit of the number in question is only 1,3,7 or 9 in N=30K+ɑ.Furthermore,determination of N is discussed in four situations accordingly.

关 键 词：素数 合数 因数 非负整数 

分 类 号：O156.4[理学—数学]