02因數與倍數02公因數(是非01)

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02因數與倍數02公因數(是非01)

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年級 *

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(1) 34＝2×17，所以　2　和　17　都是　34　的公因數 *

50 points

是

否

(2) 27÷9＝3，45÷9＝5，所以　9　是　27　和　45　的公因數。 *

50 points

是

否

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