Highest Common Factor of 789, 668, 860 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 789, 668, 860 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 789, 668, 860 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 789, 668, 860 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 789, 668, 860 is 1.

HCF(789, 668, 860) = 1

HCF of 789, 668, 860 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 789, 668, 860 is 1.

Highest Common Factor of 789,668,860 using Euclid's algorithm

Highest Common Factor of 789,668,860 is 1

Step 1: Since 789 > 668, we apply the division lemma to 789 and 668, to get

789 = 668 x 1 + 121

Step 2: Since the reminder 668 ≠ 0, we apply division lemma to 121 and 668, to get

668 = 121 x 5 + 63

Step 3: We consider the new divisor 121 and the new remainder 63, and apply the division lemma to get

121 = 63 x 1 + 58

We consider the new divisor 63 and the new remainder 58,and apply the division lemma to get

63 = 58 x 1 + 5

We consider the new divisor 58 and the new remainder 5,and apply the division lemma to get

58 = 5 x 11 + 3

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

5 = 3 x 1 + 2

We consider the new divisor 3 and the new remainder 2,and apply the division lemma to get

3 = 2 x 1 + 1

We consider the new divisor 2 and the new remainder 1,and apply the division lemma to get

2 = 1 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 789 and 668 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(58,5) = HCF(63,58) = HCF(121,63) = HCF(668,121) = HCF(789,668) .

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

Step 1: Since 860 > 1, we apply the division lemma to 860 and 1, to get

860 = 1 x 860 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 860 is 1

Notice that 1 = HCF(860,1) .

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Frequently Asked Questions on HCF of 789, 668, 860 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 789, 668, 860?

Answer: HCF of 789, 668, 860 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 789, 668, 860 using Euclid's Algorithm?

Answer: For arbitrary numbers 789, 668, 860 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.