Highest Common Factor of 931, 789, 55 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 931, 789, 55 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 931, 789, 55 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 931, 789, 55 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 931, 789, 55 is 1.

HCF(931, 789, 55) = 1

HCF of 931, 789, 55 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 931, 789, 55 is 1.

Highest Common Factor of 931,789,55 using Euclid's algorithm

Highest Common Factor of 931,789,55 is 1

Step 1: Since 931 > 789, we apply the division lemma to 931 and 789, to get

931 = 789 x 1 + 142

Step 2: Since the reminder 789 ≠ 0, we apply division lemma to 142 and 789, to get

789 = 142 x 5 + 79

Step 3: We consider the new divisor 142 and the new remainder 79, and apply the division lemma to get

142 = 79 x 1 + 63

We consider the new divisor 79 and the new remainder 63,and apply the division lemma to get

79 = 63 x 1 + 16

We consider the new divisor 63 and the new remainder 16,and apply the division lemma to get

63 = 16 x 3 + 15

We consider the new divisor 16 and the new remainder 15,and apply the division lemma to get

16 = 15 x 1 + 1

We consider the new divisor 15 and the new remainder 1,and apply the division lemma to get

15 = 1 x 15 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 931 and 789 is 1

Notice that 1 = HCF(15,1) = HCF(16,15) = HCF(63,16) = HCF(79,63) = HCF(142,79) = HCF(789,142) = HCF(931,789) .

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

Step 1: Since 55 > 1, we apply the division lemma to 55 and 1, to get

55 = 1 x 55 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 55 is 1

Notice that 1 = HCF(55,1) .

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Frequently Asked Questions on HCF of 931, 789, 55 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 931, 789, 55?

Answer: HCF of 931, 789, 55 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 931, 789, 55 using Euclid's Algorithm?

Answer: For arbitrary numbers 931, 789, 55 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.