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The GCF is 1.
' 1 ' is.
the GCF is 5
The GCF is 2.
The GCF is 23.
gcf(23, 6) = 1.
The GCF is 3.
The GCF is 6.
3
You need at least two numbers to find a GCF. If that's 3 and 6, the GCF is 3.
The GCF is 5.
The GCF is 8.