Skip to content / Đến nội dung
ThichHocToan.com

1960 AMC 12 Question 33

AMC12 · 1960 AMC 12

Question 33

You are given a sequence of $58$ terms; each term has the form $P+n$ where $P$ stands for the product $2\cdot3\cdot5\cdots61$ of all prime numbers less than or equal to $61,$ and $n$ takes, successively, the values $2,$ $3,$ $4,$ $\ldots,$ $59.$ Let $N$ be the number of primes appearing in this sequence. Then $N$ is:
  1. $0$
  2. $16$
  3. $17$
  4. $57$
  5. $58$