The prime counting function π(x) and the estimate from the prime number theorem plotted up to x= 1000.
这时数学家会利用π的小数位和拼接素数产生真正的随机数,对重要信息进行加密。
At this time, mathematicians will use PI decimal and splice prime numbers to generate real random numbers and encrypt important information.
只破解一个1024位素数就可以让NSA方便地访问全球三分之二的VPN和四分之一的SSH服务器。
Common 1024-bit prime would allow NSA to passively decrypt connections to two-thirds of VPNs and a quarter of all SSH servers globally.
你首先对素数设计一种概率模型,即假装告诉自己,它们是根据某种随机过程挑选出来的。
Your first devise a probabilistic model for the primes- that is, you pretend to yourself that they have been selected according to some random procedure.
如果数字不是素数,则“粉碎”它,将其转换为素数,然后再触摸它。
If the number is not a prime number, you"Smash" it, transform it into a prime number, and then touch it.
素数的随机性构成了所谓RSA算法的公共加密形式的基础。
The randomness of prime numbers forms a basis of a form of encryption called an RSA algorithm.
如果n不是素数,那么,一般而言,大部分的a<n都将满足上面的关系。
If n is not prime, then, in general, most of the numbers a< n will not satisfy the above relation.
具体来说,“孪生”素数通常扎堆出现,比如3和5还有11和13,他们的差仅为2。
In particular,"twin" primes often crop up- pairs such as 3 and 5, or 11 and 13, that differ by only 2.
如果一个梅森数是素数那么它称为梅森素数(Mersenneprime).
If Mp is itself a prime number, then it is called a Mersenne prime..
素数也没有像三角形数或平方数这样简单的几何表现,但是通过一些工作,我们可以发现有趣的模式:.
Prime numbers also don't have a simple geometric representation like triangle or square numbers, but with a bit of work we can reveal interesting patterns.
若2n+1是素数,可以得到n必须是2的幂。
If 2n+ 1 is prime, and n> 0, it can be shown that n must be a power of two.
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