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When you simplify each of those expressions you get 120xy, 210xy and 216xy. The GCF of those is 6xy because it divides evenly into all of them.
The GCF is 2x4
The GCF is 3.
The GCF is x6y3
3xy2
3xy
9x2
8x2y2
It is: 10
What is the Greatest common factor of 21 and 84
The GCF is 7.
6.
infinite
Common factors
It is one
1
The GCF is 17.
6
10
3
3k
4y