Given a even number n large enough, it will subtract all prime numbers in (sqrt n, n- sqrt n), start from the bigger side. let the set of primes smaller and equal to sqrt n be P_d. Locate the first prime p_x, such that, for each p_i in P_d, p_x - the nearest ...
痛定斯痛,开始了新的构造.还是得在领域, n - sqrt n 附近下功夫. 如果说 n minus some p_x we call nmpx point, and for all p_d (p_d<= sqrt n), nmpx 的邻域拥有所有 set p_d 的倍数,且npmx不在这些倍数上. 那么p_x 和npmx就构成歌德巴赫对.
这是一个很好的问题. 14 n - \sqrt n 10.25 delta_3 = 4 greater than 11 greater than 10 pass delta_4 = 5 First prime less than 10.25 is 7, not coprime with 14 pass. delta_5 = 6 delta_6 = 7 hit 5, 5 already used in the deltas, pass. 简单走一下,如果完全用最新一稿的证明来查14,没有结果