Highest Common Factor of 815, 4920 using Euclid's algorithm

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 815, 4920 i.e. 5 the largest integer that leaves a remainder zero for all numbers.

HCF of 815, 4920 is 5 the largest number which exactly divides all the numbers i.e. where the remainder is zero. Let us get into the working of this example.

Consider we have numbers 815, 4920 and we need to find the HCF of these numbers. To do so, we need to choose the largest integer first and then as per Euclid's Division Lemma a = bq + r where 0 ≤ r ≤ b

Highest common factor (HCF) of 815, 4920 is 5.

HCF(815, 4920) = 5

HCF of 815, 4920 using Euclid's algorithm

Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

HCF of:

Highest common factor (HCF) of 815, 4920 is 5.

Highest Common Factor of 815,4920 using Euclid's algorithm

Highest Common Factor of 815,4920 is 5

Step 1: Since 4920 > 815, we apply the division lemma to 4920 and 815, to get

4920 = 815 x 6 + 30

Step 2: Since the reminder 815 ≠ 0, we apply division lemma to 30 and 815, to get

815 = 30 x 27 + 5

Step 3: We consider the new divisor 30 and the new remainder 5, and apply the division lemma to get

30 = 5 x 6 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 815 and 4920 is 5

Notice that 5 = HCF(30,5) = HCF(815,30) = HCF(4920,815) .

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Frequently Asked Questions on HCF of 815, 4920 using Euclid's Algorithm

1. What is the Euclid division algorithm?

Answer: Euclid's Division Algorithm is a technique to compute the Highest Common Factor (HCF) of given positive integers.

2. what is the HCF of 815, 4920?

Answer: HCF of 815, 4920 is 5 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 815, 4920 using Euclid's Algorithm?

Answer: For arbitrary numbers 815, 4920 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.