AMC 8 2023 Problem 4
AMC8 2023 年第 4 题
整除与因数★★☆☆☆
The numbers from 1 to 49 are arranged in a spiral pattern on a square grid, beginning at the center. The first few numbers have been entered into the grid below. Consider the four numbers that will appear in the shaded squares, on the same diagonal as the number 7. How many of these four numbers are prime?
在正方形方格表上，数 1 到 49 从中心开始，按螺旋式方式排列。前面几个数已经填入到下面的方格表中。考虑与数 7 出现在同一个对角线上的阴影方格中的四个数。问这四个数中有几个质数？
- A.0
- B.1
- C.2
- D.3
- E.4
正确答案 · Correct Answer
D
解析 · Solution
解析整理中
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