Farran Powell is the managing editor of investing at Forbes Advisor. She was previously the assistant managing editor of investing at U.S. News & World Report. Her work has appeared in numerous ...

Ward Williams is a former Editor for Investopedia focused on student loans and other financial products and services. He has over five years of professional editing, proofreading, and writing ...

Most early calculating machines carried out multiplication as a form of repeated addition. To multiply, say, by thirteen, one set the carriage at its rightmost position, turned the operating crank ...