No, it is not.
The least common factor of any group of whole numbers is always 1. You need to have at least two numbers to have a math problem. Since there is only one number, there cannot be a least common factor.
The address of the Fremont Center For The Arts is: Po Box 1006, Canon City, CO 81215
The address of the Fremont County Historical Society is: Po Box 965, Canon City, CO 81215
You need at least two numbers to find an LCM. If that's 81 and 215, the LCM is 17415. If that's 8, 12 and 15, the LCM is 120.
The address of the Deweese-Rudd Museum Group Inc is: Po Box 481, Canon City, CO 81215-0481
The address of the Royal Gorge Regional Museum And History Center is: 612 Royal Gorge Blvd, Canon City, CO 81215-1460