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-3 votes
1 answer
201 views

Formula for gaps between primes [closed]

The twin prime conjecture refers to: $$ \liminf_{n\to \infty}\; p_{n+1} - p_{n} = 2. $$ By reasoning I arrive at the following simple formula for gaps between primes: \begin{align} p_{...
Wayne's user avatar
  • 13
1 vote
0 answers
156 views

Nontrivial nonrandom properties of prime numbers

What are some nontrivial nonrandom properties of prime numbers. Consider the simple model where each number is prime with probability 1/log(n) by Montgomery and extensions of it. Once you add some ...
ericf's user avatar
  • 680
0 votes
2 answers
302 views

How can I convert Meissel's/Lehmer's formula for prime counting to get sum of primes

Legendre's formula can be very easily be generalised as mentioned here (visible after login) which is like this ${\pi}(v,p)={\pi}(v,p-1)-1.[{\pi}(v/p,p-1)-{\pi}(p-1,p-1)]$ ${ \big\downarrow}$ $S(v,p)=...
ishandutta2007's user avatar
1 vote
0 answers
186 views

Do $k$ specific prime factors uniquely determine the continuous composite sequence of length $k$?

猜想:不存在两个长度为k且一共含有k个不同素因子的连续合数序列的素因子集合相等。例如 24 25 26 27 (2 3 5 13) 其余长度为4的连续合数序列要么素因子个数大于4 要么素因子集合不等于{2 3 5 13} 这个连续合数猜想的重大特定情况下的猜想。难度可与哥德巴赫猜想匹敌,非天才误入。再比如2 3 5 唯一决定了8 9 10 除此之外再无其他。总之经过计算机验证没有找到反例。 ...
光子精灵S's user avatar
1 vote
1 answer
186 views

Comparing densities of different gapped primes (twin, cousin, sexy...) [closed]

In this experiment, I have checked how many times different gapped primes occur out of the first 10000, 100000, 1000000 first primes. Please view the following as ($X$:$Y$) where $X$ represents the ...
Isaac Brenig's user avatar
-3 votes
1 answer
237 views

L. Gegenbauer's proof of Infinitude of Primes [closed]

I was going through the paper 'Euclid’S theorem on the infinitude of primes: A historical survey of its proofs' by Romeo Mestrovic where he mentioned that L. Gegenbauer proved Infinitude of Primes by ...
math is fun's user avatar
0 votes
1 answer
228 views

Is this theorem on the abundance of prime patterns/k-tuples known?

I am looking for references regarding the following statement. For any two natural numbers x and y there must be a prime k-tuple (a, b, ...) corresponding to x consecutive primes (n+a, n+b, ...) for ...
Thomas Traill's user avatar