The GCF is 1
The GCF is 21.
The GCF is 27.
The GCF is: 63
GCF(189, 441, 63) = 21.
The GCF is 1
You need at least two numbers to find a GCF.
The GCF is 27.
The GCF is 63.
The GCF is 9.
The GCF is 27.
The GCF of 27 and 189 is 27.
The GCF is 27.
The GCF is 21.
GCF(105, 145, 189) = 1: the three are coprime.
225=3^2x5^2 189=3x7x9 Therefore GCF(225, 189) = 3
The greatest common factor of 189 and 195 is 3.