230 - 155 = 75
The GCF is: 5
The GCF is 5
The GCF is 1.
The GCF is 2.
The GCF is 2.
The GCF of 155 and 507 is 1.
The GCF is 10.
The GCF is 5.
It is: 1
310
The GCF of 137 and 230 is 1. 137 is prime, and so its only factors are 1 and 137. Since 137 is not a factor of 230, the GCF of 137 and 230 is 1.