Several methods of finding the greatest common factor and the least common multiple
The method of finding the greatest common factor and the least common multiple: 1. Special cases: 1. Two numbers of multiple relation, the greatest common factor is the smaller number, and the least common multiple is the larger number. (for example, the greatest common factor of 6 and 12 is 6, and the least common multiple is 12.) 2. Two numbers of Coprime relation, the greatest common factor is 1, and the least common multiple is it