Highest Common Factor of 768, 61, 144 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 768, 61, 144 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 768, 61, 144 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 768, 61, 144 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 768, 61, 144 is 1.

HCF(768, 61, 144) = 1

HCF of 768, 61, 144 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 768, 61, 144 is 1.

Highest Common Factor of 768,61,144 using Euclid's algorithm

Highest Common Factor of 768,61,144 is 1

Step 1: Since 768 > 61, we apply the division lemma to 768 and 61, to get

768 = 61 x 12 + 36

Step 2: Since the reminder 61 ≠ 0, we apply division lemma to 36 and 61, to get

61 = 36 x 1 + 25

Step 3: We consider the new divisor 36 and the new remainder 25, and apply the division lemma to get

36 = 25 x 1 + 11

We consider the new divisor 25 and the new remainder 11,and apply the division lemma to get

25 = 11 x 2 + 3

We consider the new divisor 11 and the new remainder 3,and apply the division lemma to get

11 = 3 x 3 + 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 768 and 61 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(11,3) = HCF(25,11) = HCF(36,25) = HCF(61,36) = HCF(768,61) .

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

Step 1: Since 144 > 1, we apply the division lemma to 144 and 1, to get

144 = 1 x 144 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 144 is 1

Notice that 1 = HCF(144,1) .

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Frequently Asked Questions on HCF of 768, 61, 144 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 768, 61, 144?

Answer: HCF of 768, 61, 144 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 768, 61, 144 using Euclid's Algorithm?

Answer: For arbitrary numbers 768, 61, 144 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.