Highest Common Factor of 68, 34, 430 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 68, 34, 430 i.e. 2 the largest integer that leaves a remainder zero for all numbers.

HCF of 68, 34, 430 is 2 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 68, 34, 430 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 68, 34, 430 is 2.

HCF(68, 34, 430) = 2

HCF of 68, 34, 430 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 68, 34, 430 is 2.

Highest Common Factor of 68,34,430 using Euclid's algorithm

Highest Common Factor of 68,34,430 is 2

Step 1: Since 68 > 34, we apply the division lemma to 68 and 34, to get

68 = 34 x 2 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 34, the HCF of 68 and 34 is 34

Notice that 34 = HCF(68,34) .


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

Step 1: Since 430 > 34, we apply the division lemma to 430 and 34, to get

430 = 34 x 12 + 22

Step 2: Since the reminder 34 ≠ 0, we apply division lemma to 22 and 34, to get

34 = 22 x 1 + 12

Step 3: We consider the new divisor 22 and the new remainder 12, and apply the division lemma to get

22 = 12 x 1 + 10

We consider the new divisor 12 and the new remainder 10,and apply the division lemma to get

12 = 10 x 1 + 2

We consider the new divisor 10 and the new remainder 2,and apply the division lemma to get

10 = 2 x 5 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 2, the HCF of 34 and 430 is 2

Notice that 2 = HCF(10,2) = HCF(12,10) = HCF(22,12) = HCF(34,22) = HCF(430,34) .

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Frequently Asked Questions on HCF of 68, 34, 430 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 68, 34, 430?

Answer: HCF of 68, 34, 430 is 2 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 68, 34, 430 using Euclid's Algorithm?

Answer: For arbitrary numbers 68, 34, 430 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.