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HMMT 十一月 2009 · 冲刺赛 · 第 35 题

HMMT November 2009 — Guts Round — Problem 35

专题
Contest Math / 竞赛数学
难度
L3
来源
HMMT

题目详情

英文原题

  1. [ 25 ] Call an integer n > 1 radical if 2 − 1 is prime. What is the 20 th smallest radical number? If A
    ( ( ) )
    | A − S |
    is your answer, and S is the correct answer, you will get max 25 1 − , 0 points, rounded tothe nearest integer.S
解析

英文解析

  1. [ 25 ] Call an integer n > 1 radical if 2 − 1 is prime. What is the 20 th smallest radical number? If A
    ( ( ) )
    | A − S |
    is your answer, and S is the correct answer, you will get max 25 1 − , 0 points, rounded tothe nearest integer.S
    Answer: 4423