you are taking the following test:

Grade: 5,    Subject: Math,    Topic: Multiples Lowest Common Multiple (LCM) Prime Number
 Question 1: What is the least common multiple of 9 and 12? 18 45 36 27
 Question 2: Which option shows common multiples of 15 and 20? 60, 120 75, 90 80, 120 60, 105
 Question 3: What is the Least Common Multiple of 15 and 30? 15 45 60 30
 Question 4: Which option shows the prime factorization of of 12? 2 × 2 × 3 2 × 3 × 4 3 × 3 × 4 2 × 2 × 2
 Question 5: Which is a prime number? 4 5 6 8
 Question 6: Which option shows the prime factorization of 30? 2 × 2 × 5 2 × 3 × 5 2 × 3 × 6 2 × 4 × 5
 Question 7: Which number is neither a prime nor a composite number? 5 15 1 2
 Question 8: Choose the CORRECT answer. 3 and 6 are prime numbers 5 and 8 are prime numbers 4 and 11 are composite numbers 8 and 15 are composite numbers
 Question 9: Which option shows factors of 16? 1, 2, 4, 8, 16 1, 5, 10, 15, 20 1, 3, 6, 12, 14 1, 2, 5, 10, 15
 Question 10: Find the GCF of 36 and 54. 36 18 30 72