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cmmdc si cmmmc la nr:400 840 280


Răspuns :

400 = 24 * 52
cmmdc 400= 24 * 52 = 400840 = 23 * 3 * 5 * 7
cmmdc 840= 23 * 3 * 5 * 7 = 840280 = 23 * 5 * 7
cmmdc 280= 23 * 5 * 7 = 280