因?yàn)?5=5×9,所以5和9都是45的約數(shù),
故選:C.
因?yàn)?5=5×9,所以5和9都是45的( ) A.質(zhì)因數(shù) B.公約數(shù) C.約數(shù) D.互質(zhì)數(shù)
因?yàn)?5=5×9,所以5和9都是45的( )
A. 質(zhì)因數(shù)
B. 公約數(shù)
C. 約數(shù)
D. 互質(zhì)數(shù)
A. 質(zhì)因數(shù)
B. 公約數(shù)
C. 約數(shù)
D. 互質(zhì)數(shù)
數(shù)學(xué)人氣:638 ℃時(shí)間:2020-03-29 00:50:02
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