The factors of 81 are: 1, 3, 9, 27, 81
The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
The common factors are: 1, 3, 9
GCF (45, 81, 90) = 9
The GCF is 9.
The GCF of 81 and 90 is 9. This leaves 9 and 10 after division respectively. This cannot be further simplified using other common factors
The GCF is 9.
The greatest common factor of the numbers 42, 90 and 81 is 3.
The GCF is 3.
gcf of 37 and 81 is 1.
The GCF of 27 and 81 is 27. And their LCM is 81.
You need at least two numbers to find a GCF. If that's 42, 90 and 81, the GCF is 3.
The GCF is 9.
The GCF is 27.
The GCF is 1.