Highest Common Factor of 77, 207 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 77, 207 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 77, 207 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 77, 207 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 77, 207 is 1.

HCF(77, 207) = 1

HCF of 77, 207 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 77, 207 is 1.

Highest Common Factor of 77,207 using Euclid's algorithm

Highest Common Factor of 77,207 is 1

Step 1: Since 207 > 77, we apply the division lemma to 207 and 77, to get

207 = 77 x 2 + 53

Step 2: Since the reminder 77 ≠ 0, we apply division lemma to 53 and 77, to get

77 = 53 x 1 + 24

Step 3: We consider the new divisor 53 and the new remainder 24, and apply the division lemma to get

53 = 24 x 2 + 5

We consider the new divisor 24 and the new remainder 5,and apply the division lemma to get

24 = 5 x 4 + 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 77 and 207 is 1

Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(24,5) = HCF(53,24) = HCF(77,53) = HCF(207,77) .

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Frequently Asked Questions on HCF of 77, 207 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 77, 207?

Answer: HCF of 77, 207 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 77, 207 using Euclid's Algorithm?

Answer: For arbitrary numbers 77, 207 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.