Problem 4.1: Factor 924. [Solution]

Problem 4.2: Factor 4,725. [Solution]

Problem 4.3: Factor 245. [Solution]

Problem 4.4: What is the greatest common factor of 300 and 2,550? [Solution]

Problem 4.5: What is the greatest common factor of 30 and 16? [Solution]

Problem 4.6: What is the least common multiple of 30 and 16? [Solution]

Problem 4.7: What is the greatest common factor of 8 and 32? [Solution]

Problem 4.8: What is the least common multiple of 8 and 32? [Solution]

Problem 4.9: What is the greatest common factor of 12 and 385? [Solution]