How to find GCF Greatest Common Factor, LCM Least Common Multiple, LCD Least Common Denominator

Basic Math na mahalaga sa Civil Service Exam
Part1:    • How to find GCF Greatest Common Facto...  
Part2:    • Complete: Addition Subtraction Multip...  
Part3:    • Decimal Numbers | Addition Subtractio...  
Part4:    • Decimal Fraction Percent Form | Basic...  
Part5:    • Basic Math Word Problems for Civil Se...  
Part6:    • Ratio and Proportion Basic Math for C...  
Part7:    • Perform the Indicated Operations: Add...  
Part8:    • Find the Value of X | Linear Equation...  
Part9:    • What is the number? Word Problems to ...  
Part10:    • What score does she need on the next ...  

Ways to Find GCF and LCM
1. Choose the least number (for GCF) whether it can divide the other number; Choose the greater number (for LCM) whether it can BE divided by the other number.
2. List down their factors (for GCF) and choose the greatest common factor; List down their multiples (for LCM) and choose the least common multiple
3. Ladder or continuous division (must watch the video for detailed explanation)
4. Factor Tree / Prime Factorization (must watch the video for detailed explanation)

More examples:
1.    • GCF | How to Find the Greatest Common...  
2.    • Find the COMMON FACTORS | Ways to fin...  
3.    • How to Simplify FRACTIONS [Factor out...  
4.    • LCM vs LCD (Least Common Multiple vs ...  
5.    • How to find Least Common Multiple and...