Highest Common Factor of 781, 47165 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 781, 47165 i.e. 1 the largest integer that leaves a remainder zero for all numbers.

HCF of 781, 47165 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 781, 47165 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 781, 47165 is 1.

HCF(781, 47165) = 1

HCF of 781, 47165 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 781, 47165 is 1.

Highest Common Factor of 781,47165 using Euclid's algorithm

Highest Common Factor of 781,47165 is 1

Step 1: Since 47165 > 781, we apply the division lemma to 47165 and 781, to get

47165 = 781 x 60 + 305

Step 2: Since the reminder 781 ≠ 0, we apply division lemma to 305 and 781, to get

781 = 305 x 2 + 171

Step 3: We consider the new divisor 305 and the new remainder 171, and apply the division lemma to get

305 = 171 x 1 + 134

We consider the new divisor 171 and the new remainder 134,and apply the division lemma to get

171 = 134 x 1 + 37

We consider the new divisor 134 and the new remainder 37,and apply the division lemma to get

134 = 37 x 3 + 23

We consider the new divisor 37 and the new remainder 23,and apply the division lemma to get

37 = 23 x 1 + 14

We consider the new divisor 23 and the new remainder 14,and apply the division lemma to get

23 = 14 x 1 + 9

We consider the new divisor 14 and the new remainder 9,and apply the division lemma to get

14 = 9 x 1 + 5

We consider the new divisor 9 and the new remainder 5,and apply the division lemma to get

9 = 5 x 1 + 4

We consider the new divisor 5 and the new remainder 4,and apply the division lemma to get

5 = 4 x 1 + 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 781 and 47165 is 1

Notice that 1 = HCF(4,1) = HCF(5,4) = HCF(9,5) = HCF(14,9) = HCF(23,14) = HCF(37,23) = HCF(134,37) = HCF(171,134) = HCF(305,171) = HCF(781,305) = HCF(47165,781) .

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Frequently Asked Questions on HCF of 781, 47165 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 781, 47165?

Answer: HCF of 781, 47165 is 1 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 781, 47165 using Euclid's Algorithm?

Answer: For arbitrary numbers 781, 47165 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.