Finding GCF and LCM Concepts

The video tutorial on Teacher Pro TV covers the concepts of Greatest Common Factor (GCF) and Least Common Multiple (LCM). It explains how to find common factors and multiples, and demonstrates solving problems using different methods such as listing, factor trees, and continuous division. The tutorial includes example problems and learning activities to reinforce understanding. The lesson concludes with a recap of key points.

What is the main focus of today's lesson?

• Studying algebraic expressions

• Learning about fractions

• Finding the area of a rectangle

• Understanding common factors and multiples

What is the greatest common factor (GCF)?

• The smallest factor of a number

• The smallest multiple common to two or more numbers

• The largest factor common to two or more numbers

• The largest multiple of a number

Which method involves listing all factors to find the GCF?

• Factor Tree

• Continuous Division

• Prime Factorization

• Listing Method

What is the least common multiple (LCM)?

• The smallest factor of a number

• The largest multiple of a number

• The largest factor common to two or more numbers

• The smallest multiple common to two or more numbers

In the listing method, what are the common multiples of 18, 24, and 36?

• 18 and 24

• 72 and 144

• 24 and 36

• 36 and 72

What is the GCF of 25 and 75?

• 75

• 5

• 15

• 25

How often will Leo, It, and JP meet at the regional office?

• Every 6 days

• Every 10 days

• Every 8 days

• Every 12 days

What is the LCM of 8, 14, and 10 using the Factor Tree method?

• 320

• 280

• 180

• 140

Using continuous division, what is the GCF of 27, 45, and 54?

• 6

• 3

• 12

• 9

Which method can be used to find both GCF and LCM?

• Listing Method

• Factor Tree

• Continuous Division

• All of the above