This is a preview. Log in through your library . Abstract Some newly-discovered arithmetic progressions of primes are presented, including five length twenty-one and one of length twenty-two. Journal ...

Sequences of integers exist with any possible upper density and lower density which do not contain an infinitely long arithmetic progression. Journal Information This monthly journal, begun in 1950, ...

Quantitative Aptitude Practice questions on Progression: This practice set has 10 questions with their answers & Explanatory answer covering topics from the areas of ...