Let Z be a 6-digit positive integer,such as 247247,whose first three digits are the same as its last three digits taken in the same order.Which of the following numbers must be a factor of Z?( ?。?br />設Z是一個六位正整數(shù),例如247247,其前三位數(shù)字與按相同順序取的后三位數(shù)字相同。以下哪個數(shù)字必定是Z的因數(shù)?
【考點】因數(shù)與倍數(shù).
【答案】A
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發(fā)布:2024/9/7 1:0:8組卷:1引用:3難度:0.8
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