Mathematics Quarter 1-Module 3 Finding the gcf and lcm (what i know (Pre-test) Directions: Read and understand each item carefully. write the letter of the correct answer in the blank provided before each number. __1. what does gcf or greatest common factor mean? A. It is the biggest number among the given numbers. B. It is the largest factor common to the given numbers. C. It is the smallest factor among the given numbers. D. It is the largest number of the given factors.