5 □ medium maximum filling______ The divisor of this number is______ ． | Math enthusiast | Mathematical art

5 □ medium maximum filling The divisor of this number is ．

(1) The number can be divided by 3 only if the sum of 5 + / is a multiple of 3, so the possible numbers are 1, 4, 7. The number can be divided by 3 only when 7 is filled in. Therefore, the number can be divided by 3 only when 7 is filled in the maximum number of 5 + / 57. (2) the divisor of 57 is 1, 3, 19, 57. So the answer is: 7, 1, 3, 19, 57

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