A = 2 × 2 × 3, B = 2 × 3 × 5, the greatest common factor of a and B is______ The least common multiple is______ .

A = 2 × 2 × 3, B = 2 × 3 × 5, the greatest common factor of a and B is______ The least common multiple is______ .


A = 2 × 2 × 3, B = 2 × 3 × 5, because the common prime factors of a and B are 2 and 3, the unique prime factor of a is 2, and the unique prime factor of B is 5, so the greatest common divisor of a and B is 2 × 3 = 6, and the least common multiple of a and B is 2 × 3 × 2 × 5 = 60



In the morning, I fell ill and didn't listen to this math class. I was silly when I saw my homework. I knelt down and asked for the method of solving the greatest common factor of two numbers by decomposing the prime factor


The following methods are commonly used to find the greatest common factor: for example, the greatest common factor of 45 and 96: first decompose 45 into prime factor, and get: 45 = 3 × 3 × 5, then decompose 96 into prime factor: 96 = 2 × 2 × 2 × 2 × 3. Now, find their common factor, find one, write it down, cross it out, and finally get a 3, so the greatest common factor of 45 and 96



What is the least common multiple of 12, 16 and 18?


12=2*2*3
16=2*2*2*2
18=2*2*3*3
The least common multiple is 2 * 2 * 3 * 3 * 2 * 2 = 144



Least common multiple of 16 and 18
Help me calculate the least common multiple of 16 and 18


144