**What is the HCF of 5?** To find the HCF of 5, 10 and 15, we will find the prime factorization of given numbers, i.e. 5 = 5; 10 = 2 × 5; 15 = 3 × 5. ⇒ Since 5 is the only common prime factor of 5, 10 and 15. Hence, **HCF(5, 10, 15) = 5**.

## What is the HCF of 5 and 10?

Prime factorization of 5 and 10 is (5) and (2 × 5) respectively. As visible, 5 and 10 have only one common prime factor i.e. 5. Hence, the HCF of 5 and 10 is **5**.

## What is the HCF of 5 and 5?

The GCF of 5 and 5 is **5**.

## What is the HCF of 5 and 7?

What is the GCF of 5 and 7? The GCF of 5 and 7 is **1**. To calculate the greatest common factor (GCF) of 5 and 7, we need to factor each number (factors of 5 = 1, 5; factors of 7 = 1, 7) and choose the greatest factor that exactly divides both 5 and 7, i.e., 1.

## What is the HCF of 4 and 5?

The HCF of 4 and 5 is **1**. To calculate the HCF of 4 and 5, we need to factor each number (factors of 4 = 1, 2, 4; factors of 5 = 1, 5) and choose the highest factor that exactly divides both 4 and 5, i.e., 1.

## What is the HCF of 5 and 15?

There are 2 common factors of 5 and 15, that are 1 and 5. Therefore, the greatest common factor of 5 and 15 **is 5**.

## What is the HCF of 6?

To find the HCF of 6 and 9, we will find the prime factorization of the given numbers, i.e. 6 = 2 × 3; 9 = 3 × 3. ⇒ Since 3 is the only common prime factor of 6 and 9. Hence, **HCF (6, 9) = 3**.

## What is the HCF of 25?

To find the HCF of 25 and 40, we will find the prime factorization of the given numbers, i.e. 25 = 5 × 5; 40 = 2 × 2 × 2 × 5. ⇒ Since 5 is the only common prime factor of 25 and 40. Hence, **HCF (25, 40) = 5**.

## What is the HCF of 20 and 30?

As visible, 20 and 30 have common prime factors. Hence, the HCF of 20 and 30 is **2 × 5 = 10**.

## What’s the GCF of 5 and 6?

Answer: GCF of 5 and 6 is **1**.

## What is the GCF of 5 and 9?

What is the GCF of 5 and 9? The GCF of 5 and 9 is **1**.

## What are the common factors of 4 5?

The common factors of 4 and 5 are **1**, intersecting the two sets above. In the intersection factors of 4 ∩ factors of 5 the greatest element is 1. Therefore, the greatest common factor of 4 and 5 is 1.

## What is the HCF of 4 and 6?

To find the HCF of 4 and 6, we will find the prime factorization of the given numbers, i.e. 4 = 2 × 2; 6 = 2 × 3. ⇒ Since 2 is the only common prime factor of 4 and 6. Hence, **HCF (4, 6) = 2**.

## What is the HCF of 4 and 15?

if there is no common factor it means that **1** is the common factor. hence, HCF of 4 and 15 is 1.

## What is the HCF of 15 and 9?

The HCF of 9 and 15 is **3**.

## What is the HCF of 15 and 20?

HCF of 15 and 20 by Prime Factorization

As visible, 15 and 20 have only one common prime factor i.e. **5**. Hence, the HCF of 15 and 20 is 5.

## What is the HCF of 20?

To find the HCF of 20 and 25, we will find the prime factorization of the given numbers, i.e. 20 = 2 × 2 × 5; 25 = 5 × 5. ⇒ Since 5 is the only common prime factor of 20 and 25. Hence, **HCF (20, 25) = 5**.

## What is the HCF of 6 12 and 24?

HCF of 6 and 24 by Prime Factorization

As visible, 6 and 24 have common prime factors. Hence, the HCF of 6 and 24 is **2 × 3** = 6.

## What is the HCF of 15 25 and 30?

The highest number that divides 15, 25, and 30 exactly is their highest common factor. The HCF of 15, 25, and 30 is **5**. ∴ The highest number that divides 15, 25, and 30 is 5.

## What is the HCF of 90?

The highest number that divides 90 and **120** exactly is their highest common factor, i.e. HCF of 90 and 120. ⇒ Factors of 90 and 120: Factors of 90 = 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90. Factors of 120 = 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120.

## What is the HCF of 5 and 25?

Therefore, the GCF of 5 and 25 is **5**. Example 3: Find the GCF of 5 and 25, if their LCM is 25. Therefore, the greatest common factor of 5 and 25 is 5.

## What’s the HCF of 25 and 30?

There are 2 common factors of 25 and 30, that are 1 and **5**. Therefore, the greatest common factor of 25 and 30 is 5.

## What is the HCF of 12 15 and 30?

As you can see when you list out the factors of each number, **3** is the greatest number that 12, 15, and 30 divides into.

## What is the HCF of 36 and 24?

Answer: HCF of 24 and 36 is **12**.

## What is the HCF of 30?

Factors of 30 (Thirty) = 1, 2, 3, 5, 6, 10, 15 and 30. Factors of 24 (Twenty four) = 1, 2, 3, 4, 6, 8, 12 and 24. Therefore, common factor of 30 (Thirty) and 24 (Twenty four = 1, 2, 3, and **6**. Highest common factor (H.C.F) of 30 (Thirty) and 24 (Twenty four = 6.

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