Highest Common Factor of 920, 485, 128 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 920, 485, 128 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 920, 485, 128 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 920, 485, 128 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 920, 485, 128 is 1.

HCF(920, 485, 128) = 1

HCF of 920, 485, 128 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 920, 485, 128 is 1.

Highest Common Factor of 920,485,128 using Euclid's algorithm

Highest Common Factor of 920,485,128 is 1

Step 1: Since 920 > 485, we apply the division lemma to 920 and 485, to get

920 = 485 x 1 + 435

Step 2: Since the reminder 485 ≠ 0, we apply division lemma to 435 and 485, to get

485 = 435 x 1 + 50

Step 3: We consider the new divisor 435 and the new remainder 50, and apply the division lemma to get

435 = 50 x 8 + 35

We consider the new divisor 50 and the new remainder 35,and apply the division lemma to get

50 = 35 x 1 + 15

We consider the new divisor 35 and the new remainder 15,and apply the division lemma to get

35 = 15 x 2 + 5

We consider the new divisor 15 and the new remainder 5,and apply the division lemma to get

15 = 5 x 3 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 5, the HCF of 920 and 485 is 5

Notice that 5 = HCF(15,5) = HCF(35,15) = HCF(50,35) = HCF(435,50) = HCF(485,435) = HCF(920,485) .

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

Step 1: Since 128 > 5, we apply the division lemma to 128 and 5, to get

128 = 5 x 25 + 3

Step 2: Since the reminder 5 ≠ 0, we apply division lemma to 3 and 5, to get

5 = 3 x 1 + 2

Step 3: 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 5 and 128 is 1

Notice that 1 = HCF(2,1) = HCF(3,2) = HCF(5,3) = HCF(128,5) .

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Frequently Asked Questions on HCF of 920, 485, 128 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 920, 485, 128?

Answer: HCF of 920, 485, 128 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 920, 485, 128 using Euclid's Algorithm?

Answer: For arbitrary numbers 920, 485, 128 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.