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Greatest common factor for:
30a to the second power , 42a to the third power, 54a to the third power b

Sagot :

         30a²                       42a³                            54a³b             
2 · 3 · 5 ·× a · a    2 · 3 · 7 · a · a · a    2 · 3 · 3 · 3 · a · a · a · b   

GCF = 2 · 3 · a · a
GCF = 6a²