B.Encircle the letter of the correct answer. 1. What is the least common multiple of 5 and 8? A.30 B.40 C.50 D.20 2. Which of the following is not a method in finding the common multiples of num A.addition method C.listing method B.continuous division D.prime factorization 3. 6 is the GCF(Greatest Common Factor)of what pair of numbers? A.12 and 20 C.10 and 24 B.24 and 30 D.15 and 25 4. What is the greatest common factor of 50 and 60? A.5 B.10 C.15 D.20 5. What is the least common multiple of 6 and 14? A.40 B.42 C.45 D.35​