A pile of sugar, the first time it is quintupled and 1 piece is left, the second time four of it is quintupled and 1 piece is left, the third time is three of the second quintuplet After that, there is still 1 yuan left, and after the fourth time, the second part of the third time is divided into 5 equal parts, and there is still 1 yuan left. How many pieces are there at least in this pile of candies?
一堆糖，第一次把它五等份后剩1块，第二次把其中的四份再五等份后还剩1块，第三次把第二次中的三份再五等份后还剩1块，第四次把第三次中的二份再五等份后还剩1块，这堆糖至少有多少块？
<result>296</result>