HCF of 12 and 15 by Prime Factorization

Prime factorization of 12 and 15 is (2 × 2 × 3) and (3 × 5) respectively. As visible, 12 and 15 have only one common prime factor i.e. 3. Hence, the HCF of 12 and 15 is 3.

Also, What is the GCF of 18 and 36?

Answer: GCF of 18 and 36 is 18.

Hereof, What is the HCF of 16 and 24?

The HCF of 16 and 24 is 8. To calculate the Highest common factor (HCF) of 16 and 24, we need to factor each number (factors of 16 = 1, 2, 4, 8, 16; factors of 24 = 1, 2, 3, 4, 6, 8, 12, 24) and choose the highest factor that exactly divides both 16 and 24, i.e., 8.

Also to know What is the HCF of 18 and 24? Answer: HCF of 18 and 24 is 6.

What is the HCF of 18 and 30?

GCF of 18 and 30 by Listing Common Factors

Therefore, the greatest common factor of 18 and 30 is 6.

## What is the GCF of 18 and 27?

GCF of 18 and 27 by Listing Common Factors

Therefore, the greatest common factor of 18 and 27 is 9.

## What is the HCF of 12 and 18?

HCF of 12 and 18 by Prime Factorization

As visible, 12 and 18 have common prime factors. Hence, the HCF of 12 and 18 is 2 × 3 = 6.

## What is the HCF of 16 and 18?

Well, The HCF (Highest Common Factor) of 16 and 18 is 2.

## What is the HCF of 16 and 13?

Final Step: Biggest Common Factor Number

The biggest common factor number is the GCF number. So the greatest common factor 13 and 16 is 1.

## What is the HCF of 16 and 27?

Answer: HCF of 16 and 27 is 1.

## What is the HCF of 12 18 and 24?

Answer: HCF of 12, 18 and 24 is 6.

## What is the HCF of 18 and 16?

So the greatest common factor 18 and 16 is 2.

## What is the HCF of 18 and 60?

The HCF of 18 and 60 is 6.

## What is the HCF of 18?

Factors of 18 = 1, 2, 3, 6, 9 and 18. Therefore, common factor of 12 and 18 = 1, 2, 3 and 6. Highest common factor (H.C.F) of 12 and 18 = 6 [since 6 is the highest common factor].

## What is the HCF of 70 and 30?

30 = 10 x 3 + 0. Therefore, H.C.F. of 70 and 30 is 10.

## What is the GCF of 18 and 30?

GCF of 18 and 30 by Listing Common Factors

Therefore, the greatest common factor of 18 and 30 is 6.

## What is the GCF of 18?

The factors of 18 are 1, 2, 3, 6, 9, 18. The factors of 27 are 1, 3, 9, 27. The common factors of 18 and 27 are 1, 3 and 9. The greatest common factor of 18 and 27 is 9.

## What is the HCF of 18 and 28?

Step-by-step explanation:

We found the factors and prime factorization of 18 and 28. The biggest common factor number is the GCF number. So the greatest common factor 18 and 28 is 2.

## What is the HCF of 15 and 18?

HCF of 15 and 18 by Prime Factorization

Prime factorization of 15 and 18 is (3 × 5) and (2 × 3 × 3) respectively. As visible, 15 and 18 have only one common prime factor i.e. 3. Hence, the HCF of 15 and 18 is 3.

## What is the HCF of 15?

Factors of 15 (Fifteen) = 1, 3, 5 and 15. Factors of 35 (Thirty five) = 1, 5, 7 and 35. Therefore, common factor of 15 (Fifteen) and 35 (Thirty five) = 1 and 5. Highest common factor (H.C.F) of 15 (Fifteen) and 35 (Thirty five) = 5.

## What is the HCF of 13?

Solution: The highest number that divides 13 and 19 exactly is their highest common factor, i.e. HCF of 13 and 19. ⇒ Factors of 13 and 19: Factors of 13 = 1, 13.

## What is the HCF of 52?

Therefore, the highest common factor of 52 and 117 is 13. Example 3: For two numbers, HCF = 13 and LCM = 468. If one number is 52, find the other number. Therefore, the other number is 117.

## What is the HCF of 20?

FAQs on HCF of 20 and 30

The HCF of 20 and 30 is 10. To calculate the Highest common factor (HCF) of 20 and 30, we need to factor each number (factors of 20 = 1, 2, 4, 5, 10, 20; factors of 30 = 1, 2, 3, 5, 6, 10, 15, 30) and choose the highest factor that exactly divides both 20 and 30, i.e., 10.

## What is the HCF of 777?

⇒ Since 37 is the only common prime factor of 777 and 1147. Hence, HCF (777, 1147) = 37.