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Least Common Multiple

Mike McGarry
Lesson by Mike McGarry
Magoosh Expert
Summary
The content provides an in-depth exploration of the Least Common Multiple (LCM), its calculation methods, significance in various mathematical contexts, and strategies for enhancing number sense and intuition.
  • LCM is crucial for solving problems involving fractions, sets of different sizes, and is identical to the Least Common Denominator (LCD).
  • The process of finding the LCM can be simplified by using the Greatest Common Factor (GCF) and prime factorization, especially for larger numbers.
  • Understanding the LCM is not only about memorizing procedures but also about developing number sense and intuition through practice.
  • Practical exercises, such as daily mental math challenges, are recommended to build this intuition and improve performance in math-related tasks.
  • The content underscores the importance of the LCM in the GMAT exam, offering specific strategies and tips for mastering this area.
Chapters
00:00
Introduction to Least Common Multiple
01:55
Finding the LCM Using GCF and Prime Factorization
04:25
Practical Application and Significance of LCM
07:20
Building Number Sense and Intuition