Has your circle of friends been screened by this math problem in the second grade of primary school?
Seeking answers? A basket of eggs: 1 1, just finished. Two out of two leaves 1. Three, three, just finished. Four out of four leaves 1. Five out of five, leaving 1 six out of six, leaving three. Seven, seven, just finished eating. Eight out of eight leaves 1. Nine, nine, just finished eating. How many eggs are there in the basket? 1 1 just finished eating, 3 just finished eating, 7 just finished eating, 9 just finished eating, and the number of eggs in the box is a multiple of 4*9 =63. Binary selection 1, 55 selection 1, unit number 1. So we found the following numbers: 63×7, 63× 17, 63×27, 63× 37 ... so the minimum number is 44 1.