问题描述:
the factors of six are 1,2 and 3(not including six itself).Add up these factors and you will get
six :1+2+3=6.six is a perfect number as it is the sum of its factor.what is the next perfect number?(快.)
six :1+2+3=6.six is a perfect number as it is the sum of its factor.what is the next perfect number?(快.)
问题解答:
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