素数在数论研究中占有非常重要的地位,随着素数在密码安全方面的重大应用的发现,寻求较大素数和探究更有效的素数判定方法,不仅在理论上有重要意义,而且在实践中也具有很高的应用价值。关于素数的判定有许多方法,但其中有些判定方法还可以改进,比如利用组合数判断素数的方法,仍可改进。1素数的充分必要条件 The number of primes plays a very important role in the study of number theory. With the discovery of major applications of prime numbers in cryptographic security, seeking for prime numbers and exploring more effective prime numbers not only have theoretical significance, but also in practice Has a high value of application. There are many ways to judge the prime numbers, but some of them can be improved. For example, judging prime numbers by the number of combinations can still be improved. 1 prime number of necessary and sufficient conditions