Highest Common Factor of 785, 238, 520 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 785, 238, 520 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 785, 238, 520 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 785, 238, 520 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 785, 238, 520 is 1.

HCF(785, 238, 520) = 1

HCF of 785, 238, 520 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 785, 238, 520 is 1.

Highest Common Factor of 785,238,520 using Euclid's algorithm

Highest Common Factor of 785,238,520 is 1

Step 1: Since 785 > 238, we apply the division lemma to 785 and 238, to get

785 = 238 x 3 + 71

Step 2: Since the reminder 238 ≠ 0, we apply division lemma to 71 and 238, to get

238 = 71 x 3 + 25

Step 3: We consider the new divisor 71 and the new remainder 25, and apply the division lemma to get

71 = 25 x 2 + 21

We consider the new divisor 25 and the new remainder 21,and apply the division lemma to get

25 = 21 x 1 + 4

We consider the new divisor 21 and the new remainder 4,and apply the division lemma to get

21 = 4 x 5 + 1

We consider the new divisor 4 and the new remainder 1,and apply the division lemma to get

4 = 1 x 4 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 785 and 238 is 1

Notice that 1 = HCF(4,1) = HCF(21,4) = HCF(25,21) = HCF(71,25) = HCF(238,71) = HCF(785,238) .

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

Step 1: Since 520 > 1, we apply the division lemma to 520 and 1, to get

520 = 1 x 520 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 1, the HCF of 1 and 520 is 1

Notice that 1 = HCF(520,1) .

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Frequently Asked Questions on HCF of 785, 238, 520 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 785, 238, 520?

Answer: HCF of 785, 238, 520 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 785, 238, 520 using Euclid's Algorithm?

Answer: For arbitrary numbers 785, 238, 520 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.