Highest Common Factor of 853, 720 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 853, 720 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 853, 720 is 1 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 853, 720 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 853, 720 is 1.

HCF(853, 720) = 1

HCF of 853, 720 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 853, 720 is 1.

Highest Common Factor of 853,720 using Euclid's algorithm

Highest Common Factor of 853,720 is 1

Step 1: Since 853 > 720, we apply the division lemma to 853 and 720, to get

853 = 720 x 1 + 133

Step 2: Since the reminder 720 ≠ 0, we apply division lemma to 133 and 720, to get

720 = 133 x 5 + 55

Step 3: We consider the new divisor 133 and the new remainder 55, and apply the division lemma to get

133 = 55 x 2 + 23

We consider the new divisor 55 and the new remainder 23,and apply the division lemma to get

55 = 23 x 2 + 9

We consider the new divisor 23 and the new remainder 9,and apply the division lemma to get

23 = 9 x 2 + 5

We consider the new divisor 9 and the new remainder 5,and apply the division lemma to get

9 = 5 x 1 + 4

We consider the new divisor 5 and the new remainder 4,and apply the division lemma to get

5 = 4 x 1 + 1

We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get

4 = 1 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 853 and 720 is 1

Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(9,5) = HCF(23,9) = HCF(55,23) = HCF(133,55) = HCF(720,133) = HCF(853,720) .

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Frequently Asked Questions on HCF of 853, 720 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 853, 720?

Answer: HCF of 853, 720 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 853, 720 using Euclid's Algorithm?

Answer: For arbitrary numbers 853, 720 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.