Table of Contents

## What is the GCF of 12 and 54?

6

Since 12 does not divide 54 and 6 does divide 54 the greatest common factor of 12 and 54 is 6.

**What is the GCF of 12 and 36 using factor tree?**

12

The GCF of 12 and 36 is 12. To calculate the greatest common factor (GCF) of 12 and 36, we need to factor each number (factors of 12 = 1, 2, 3, 4, 6, 12; factors of 36 = 1, 2, 3, 4, 6, 9, 12, 18, 36) and choose the greatest factor that exactly divides both 12 and 36, i.e., 12.

**What is the prime factorization of 12 and 54?**

Prime factorization of 54 and 12 is (2 × 3 × 3 × 3) = 21 × 33 and (2 × 2 × 3) = 22 × 31 respectively. LCM of 54 and 12 can be obtained by multiplying prime factors raised to their respective highest power, i.e. 22 × 33 = 108. Hence, the LCM of 54 and 12 by prime factorization is 108.

### What are the factors of the GCF is 12?

Factors of 12 are 1, 2, 3, 4, 6 and 12 … because 2 × 6 = 12, or 4 × 3 = 12, or 1 × 12 = 12.

**What is the common factor of 54 and 42?**

The GCF of 42 and 54 is 6. To calculate the greatest common factor of 42 and 54, we need to factor each number (factors of 42 = 1, 2, 3, 6, 7, 14, 21, 42; factors of 54 = 1, 2, 3, 6, 9, 18, 27, 54) and choose the greatest factor that exactly divides both 42 and 54, i.e., 6.

**What is the greatest common factor of 24 and 54?**

Answer: GCF of 24 and 54 is 6.

## What are the common factors of 50 and 20?

There are 4 common factors of 20 and 50, that are 1, 2, 10, and 5. Therefore, the greatest common factor of 20 and 50 is 10.

**How to find the GCF and LCM in factor trees?**

Factor Trees To find the GCF and LCM you first must know how to write out factor trees. The GCF is the largest number that divides into both values without a remainder. The LCM, least common multiple, is the smallest value that two or more numbers multiply into. Stay up-to-date with everything Math Hacks is up to!

**How to use factor trees to find factorizations?**

1 Step 1: Draw the factor trees for both numbers. 2 Step 2: Write out the prime factorizations for each. 3 Step 3: The GCF will be the prime factors that are common to both factorizations multiplied together. In this example,… More

### How to calculate the GCF of a number?

1 Draw the factor trees for both numbers. 2 Write out the prime factorizations for each. 3 The GCF will be the prime factors that are common to both factorizations multiplied together.

**How to find the GCF of 120 and 45?**

The GCF is the largest number that divides into both values without a remainder. Let’s find the GCF of 120 and 45. Step 1: Draw the factor trees for both numbers. Step 2: Write out the prime factorizations for each. Step 3: The GCF will be the prime factors that are common to both factorizations multiplied together.