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在参考文献[1]中,作者证明了凡安全质数必形为12k+11。本文在此基础上进一步对安全质数的特性作进一步分析,得到判定安全质数的充要条件——定理4。并由此证实:小于12k+11的安全质数个数和小于k的质数个数相接近。
In reference [1], the author proves that the safety prime number is 12k + 11. On this basis, the paper further analyzes the properties of safety prime numbers and obtains the necessary and sufficient conditions for the safety prime numbers - Theorem 4. It is thus confirmed that the number of prime numbers less than 12k + 11 is close to the number of prime numbers less than k.