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Verified Answer :

9 is the LCM, and the GCF is 27

when finding GCF and LCM, it is is easiest to start by factoring

81=3333
99=3
311

GCF, group the common ones
3
3 is common
GCF is 9


LCM
group common ones that include all
333311=891



GCF=9
LCM=891