什么样的数能被2,3,5整除?特征是什么? 能被2,3,5整除的数,各有什么特征
\u4ec0\u4e48\u6837\u7684\u6570\u80fd\u88ab2,3,5\u6574\u9664?\u7279\u5f81\u662f\u4ec0\u4e48?\u88ab2\u6574\u9664\u7684\u6570\u3002
\u540c\u65f6\u80fd\u88ab2\uff1a\u5076\u6570
\u80fd\u88ab3\u6574\u9664\u7684\u6570\uff1a\u4e2a\u4f4d\u4e3a0\uff1a\u6240\u6709\u6570\u5b57\u4e4b\u548c\u80fd\u88ab3\u6574\u9664
\u80fd\u88ab5\u6574\u9664\u7684\u6570,3\uff1a\u4e2a\u4f4d\u662f0\u62165,5\u6574\u9664\u7684\u6570\uff0c\u4e14\u6240\u6709\u6570\u5b57\u4e4b\u548c\u80fd\u88ab3\u6574\u9664
1\u3001\u80fd\u88ab2\u6574\u9664\u7684\u6570\uff0c\u4e2a\u4f4d\u4e0a\u7684\u6570\u80fd\u88ab2\u6574\u9664\uff08\u5076\u65700\uff0c2,4,6,8\u90fd\u80fd\u88ab2\u6574\u9664\uff09\uff0c\u90a3\u4e48\u8fd9\u4e2a\u6570\u80fd\u88ab2\u6574\u9664\u3002
2\u3001\u80fd\u88ab3\u6574\u9664\u7684\u6570\uff0c\u5404\u4e2a\u6570\u4f4d\u4e0a\u7684\u6570\u5b57\u548c\u80fd\u88ab3\u62169\u6574\u9664\uff0c\u90a3\u4e48\u8fd9\u4e2a\u6570\u80fd\u88ab3\u62169\u6574\u9664\u3002
3\u3001\u80fd\u88ab5\u6574\u9664\u7684\u6570\uff0c\u4e2a\u4f4d\u4e0a\u4e3a0\u62165\u7684\u6570\u90fd\u80fd\u88ab5\u6574\u9664\uff0c\u90a3\u4e48\u8fd9\u4e2a\u6570\u80fd\u88ab5\u6574\u9664\u3002
\u80fd\u88ab2,3,5\u540c\u65f6\u6574\u9664\u7684\u6570\u7684\u7279\u5f81\u662f\uff1a\u4e2a\u4f4d\u6570\u662f0\u4e14\u5404\u4f4d\u6570\u5b57\u4e4b\u548c\u80fd\u88ab3\u6574\u9664\u3002
\u6269\u5c55\u8d44\u6599
\u6574\u9664\u4e0e\u9664\u5c3d\u7684\u5173\u7cfb
\u6574\u9664\u4e0e\u9664\u5c3d\u65e2\u6709\u533a\u522b\u53c8\u6709\u8054\u7cfb\u3002\u9664\u5c3d\u662f\u6307\u6570a\u9664\u4ee5\u6570b\uff08b\u22600\uff09\u6240\u5f97\u7684\u5546\u662f\u6574\u6570\u6216\u6709\u9650\u5c0f\u6570\u800c\u4f59\u6570\u662f\u96f6\u65f6\uff0c\u6211\u4eec\u5c31\u8bf4a\u80fd\u88abb\u9664\u5c3d\uff08\u6216\u8bf4b\u80fd\u9664\u5c3da\uff09\u3002
\u56e0\u6b64\u6574\u9664\u4e0e\u9664\u5c3d\u7684\u533a\u522b\u662f\uff0c\u6574\u9664\u53ea\u6709\u5f53\u88ab\u9664\u6570\u3001\u9664\u6570\u4ee5\u53ca\u5546\u90fd\u662f\u6574\u6570\uff0c\u800c\u4f59\u6570\u662f\u96f6\uff0e\u9664\u5c3d\u5e76\u4e0d\u5c40\u9650\u4e8e\u6574\u6570\u8303\u56f4\u5185\uff0c\u88ab\u9664\u6570\u3001\u9664\u6570\u4ee5\u53ca\u5546\u53ef\u4ee5\u662f\u6574\u6570\uff0c\u4e5f\u53ef\u4ee5\u662f\u6709\u9650\u5c0f\u6570\uff0c\u53ea\u8981\u4f59\u6570\u662f\u96f6\u5c31\u53ef\u4ee5\u4e86\u3002\u5b83\u4eec\u4e4b\u95f4\u7684\u8054\u7cfb\u5c31\u662f\u6574\u9664\u662f\u9664\u5c3d\u7684\u7279\u6b8a\u60c5\u51b5\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u6574\u9664
绛旓細灏辫兘鍚屾椂琚2銆3銆5鏁撮櫎锛鍗宠兘琚30鏁撮櫎鐨勬暟锛瀹冪殑鐗瑰緛鏄釜灏炬槸0锛屼笖鍚勪綅涓婃暟瀛楃殑鍜鑳借3鏁撮櫎銆
绛旓細鑳借2锛3锛5鏁撮櫎 : 30鐨勫嶆暟 30,60,90,120,...
绛旓細鑳借2,3,5鍚屾椂鏁撮櫎鐨勬暟鐨勭壒寰佹槸锛涓綅鏁版槸0涓斿悇浣嶆暟瀛椾箣鍜岃兘琚3鏁撮櫎銆
绛旓細30.60.90.120.150.180.210.240.270.300
绛旓細瑙f瀽锛氳兘鍚屾椂琚2,3,5鏁撮櫎鐨勬暟,鏈灏忔槸2*3*5=30,鍏ㄩ儴鍙〃绀轰负30K,鍏朵腑k姝f暣鏁.
绛旓細鑳借2,3,5鍚屾椂鏁撮櫎鐨勬暟鐨勭壒寰佹槸锛氫釜浣嶆暟鏄0涓斿悇浣嶆暟瀛椾箣鍜岃兘琚3鏁撮櫎銆傝嫢瑕佽姹備竴涓鏁拌兘鍚屾椂琚2銆3銆5鏁撮櫎锛屽垯闇婊¤冻鑳借鍏朵腑浠绘剰涓涓鏁版暣闄锛2鐨勫嶆暟锛氫竴涓暟鐨勬湯灏炬槸鍋舵暟锛0锛2锛4锛6锛8锛夛紝杩欎釜鏁板氨鏄2鐨勫嶆暟銆3鐨勫嶆暟锛氫竴涓暟鐨勫悇浣嶆暟涔嬪拰鏄3鐨勫嶆暟锛岃繖涓暟灏辨槸3鐨勫嶆暟銆5鐨勫嶆暟锛...
绛旓細2銆鑳借3鏁撮櫎鐨勬暟锛瀹冧滑鎵鏈夋暟瀛楃浉鍔犵殑鍜岋紝涓瀹氭槸3鐨勫嶆暟銆備緥锛12鑳借3鏁撮櫎锛12鐨勬墍鏈夋暟瀛楃浉鍔狅細1+2=3锛鏄3鐨勫嶆暟銆3銆鑳借5鏁撮櫎鐨勬暟锛瀹冧滑鐨勪釜浣嶆暟涓瀹氭槸鈥0鈥濇垨鈥5鈥濄備緥锛10銆15銆20銆25銆4銆佽兘琚7鏁撮櫎鐨勬暟銆傦紙1锛夎嫢涓涓暣鏁扮殑涓綅鏁板瓧鎴幓锛屽啀浠庝綑涓嬬殑鏁颁腑锛屽噺鍘讳釜浣嶆暟鐨2鍊嶏紝濡傛灉...
绛旓細鑳藉悓鏃惰2 锛3锛5鏁撮櫎鐨勬渶灏忎笁浣嶆暟鏄120銆傝В锛氳兘鍚屾椂琚2 锛3锛5鏁撮櫎鐨勬暟鑲畾涓2 锛3锛5鐨勫嶆暟銆傚張2锛3锛5閮芥槸璐ㄦ暟锛屾墍浠2 锛3锛5鐨勬渶灏忓叕鍊嶆暟=2x3x5=30銆傛墍浠ヨ兘鍚屾椂琚2 锛3锛5鏁撮櫎鐨勬暟鑲畾鏄30鐨勫嶆暟銆傝30x3=90锛100锛30x4=120 鎵浠ヨ兘鍚屾椂琚2 锛3锛5鏁撮櫎鐨勬渶灏忎笁浣嶆暟鏄120銆
绛旓細30,60,90杩欎笁涓
绛旓細鑳借2 3 5鏁撮櫎鐨勪袱浣嶆暟鏈夛紙3锛変釜锛屽垎鍒槸锛30锛60锛90锛