Well, honey, the Greatest Common Factor (GCF) of 189 and 20 is 1. Those two numbers don't have any common factors other than 1. So, there you have it, the sassy truth!
The GCF is 1
The GCF is 27.
The GCF is: 63
GCF(189, 441, 63) = 21.
The GCF is 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 is 27.
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.
The GCF is 1.
The GCF is 3.