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450|10 680|10 150|10
45|5 68| 2 15|5
9|3 34| 2 3|3
3|3 17|17 1
1 1
450=2*5²*3² 680=5*2³*17 150=2*5²*3
MCD(450,680,150):2*5=10
b. MCM(180,90,75):3²*2²*5²
180|5 90|5 75|5
36|3 18|3 15|3
12|3 6|3 5|5
4|2 2|2 1
2|2 1
1
180=5*3²*2² 90=5*3²*2 75=5²*3
MCD(180,90,75):5*3
c.MCM(550,360,280):5²*11*3²*2³*7
550|10 360|10 280|10
55|5 36|2 28|2
11|11 18|2 14|2
1 9|3 7|7
3|3 1
1
550=2*5²*11 360=5*2²*3² 280=5*2³*7
MCD:(550,360,280):2*5