Highest Common Factor of 791, 471, 77 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 791, 471, 77 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 791, 471, 77 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 791, 471, 77 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 791, 471, 77 is 1.

HCF(791, 471, 77) = 1

HCF of 791, 471, 77 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 791, 471, 77 is 1.

Highest Common Factor of 791,471,77 using Euclid's algorithm

Highest Common Factor of 791,471,77 is 1

Step 1: Since 791 > 471, we apply the division lemma to 791 and 471, to get

791 = 471 x 1 + 320

Step 2: Since the reminder 471 ≠ 0, we apply division lemma to 320 and 471, to get

471 = 320 x 1 + 151

Step 3: We consider the new divisor 320 and the new remainder 151, and apply the division lemma to get

320 = 151 x 2 + 18

We consider the new divisor 151 and the new remainder 18,and apply the division lemma to get

151 = 18 x 8 + 7

We consider the new divisor 18 and the new remainder 7,and apply the division lemma to get

18 = 7 x 2 + 4

We consider the new divisor 7 and the new remainder 4,and apply the division lemma to get

7 = 4 x 1 + 3

We consider the new divisor 4 and the new remainder 3,and apply the division lemma to get

4 = 3 x 1 + 1

We consider the new divisor 3 and the new remainder 1,and apply the division lemma to get

3 = 1 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 791 and 471 is 1

Notice that 1 = HCF(3,1) = HCF(4,3) = HCF(7,4) = HCF(18,7) = HCF(151,18) = HCF(320,151) = HCF(471,320) = HCF(791,471) .

We can take hcf of as 1st numbers and next number as another number to apply in Euclidean lemma

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

77 = 1 x 77 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 77 is 1

Notice that 1 = HCF(77,1) .

HCF using Euclid's Algorithm Calculation Examples

Here are some samples of HCF using Euclid's Algorithm calculations.

Frequently Asked Questions on HCF of 791, 471, 77 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 791, 471, 77?

Answer: HCF of 791, 471, 77 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 791, 471, 77 using Euclid's Algorithm?

Answer: For arbitrary numbers 791, 471, 77 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.