Understanding KPK and FPB

The video tutorial by Misfera from Jakarta covers the concepts of KPK (Kelipatan Persekutuan Kecil) and FPB (Faktor Persekutuan Besar). It explains how to find KPK and FPB using examples with numbers 28 and 42, and introduces an alternative method using factor trees. The tutorial also demonstrates finding KPK and FPB for three numbers: 50, 84, and 90. Finally, it applies these concepts to solve word problems, such as determining when people will visit a library together and distributing items equally among children.

What is the main purpose of learning KPK and FPB?

• To understand the properties of prime numbers

• To calculate the area of geometric shapes

• To find the smallest common multiple and largest common factor

• To solve complex algebraic equations

Which of the following is the KPK of 28 and 42?

• 56

• 168

• 84

• 126

What is the FPB of 28 and 42?

• 28

• 21

• 7

• 14

In the factor tree method, what is the prime factorization of 28?

• 3^2 * 5

• 2^3 * 5

• 2 * 3 * 7

• 2^2 * 7

How do you determine the KPK using the factor tree method?

• By taking the lowest power of all prime factors

• By adding all prime factors

• By taking the highest power of all prime factors

• By multiplying all prime factors once

If Amir visits the library every 6 days, Budi every 4 days, and Cind every 8 days, when will they all visit together again?

• 12 days later

• 16 days later

• 24 days later

• 28 days later

What is the KPK of 6, 4, and 8?

• 12

• 16

• 24

• 32

How many children can equally share 84 books, 56 pencils, and 140 crayons?

• 35

• 14

• 21

• 28

If each child receives an equal share, how many books does each child get?

• 2

• 3

• 5

• 4

What is the FPB of 84, 56, and 140?

• 28

• 14

• 7

• 4