Answer:
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6=2×3
8=2×2×2
12=2×2×3
GCF of 6, 8 and 12 is the factor common to all
GCF=2
There are 2 common factors of 6, 8 and 12, that are 1 and 2. Therefore, the highest common factor of 6, 8 and 12 is 2.
