its 1 the factors of 38 are 19 and 2 and 45 are 9 and 5 (prime factors would be 5 and 3 and 3)
The GCF of 38 and 76 is 38. Since 38 is a factor of 76, it is automatically the GCF.
The GCF is 4.
The GCF is 2.
The GCF is 2.
The GCF is 22.
The GCF is 2.
The GCF is 38.
The GCF is 1.
The GCF is 2.
The GCF is 2.
The GCF is 2.