The GCF is 1.
The GCF is 1.
17 is prime so its factors are 1 and 17. 17 is neither a factor of 15 nor 30, so the GCF is 1.
The GCF is 1.
The GCF is 15.
The GCF is 1.
The GCF for 15 30 45 is 15.The GCF is 15.It is: 15
The GCF is 1.
The GCF is 15.
The greatest common factor (GCF) of 15, 30, 90 is 15.
The GCF is 15.
They are: gcf = 15 and LCM = 30
The greatest common factor of 15 and 30 is 15.15 x 1 = 1515 x 2 = 30